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gumroad.com Open in urlscan Pro
104.20.11.72  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: https://gum.co/Systematic
Effective URL: https://gumroad.com/l/Systematic
Submission: On April 06 via api from CH
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 22 IPs in 4 countries across 16 domains to perform 43 HTTP transactions. The main IP is 104.20.11.72, located in San Francisco, United States and belongs to CLOUDFLARENET - Cloudflare, Inc., US. The main domain is gumroad.com.
TLS certificate: Issued by DigiCert SHA2 Extended Validation Ser... on August 9th 2017. Valid for: 2 years.
This is the only time gumroad.com was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 1 104.25.78.27 13335 (CLOUDFLAR...)
7 104.20.11.72 13335 (CLOUDFLAR...)
12 104.20.114.30 13335 (CLOUDFLAR...)
1 52.216.128.101 16509 (AMAZON-02)
5 216.58.205.238 15169 (GOOGLE)
1 216.58.205.228 15169 (GOOGLE)
1 104.20.115.30 13335 (CLOUDFLAR...)
1 151.101.112.176 54113 (FASTLY)
1 74.125.206.156 15169 (GOOGLE)
1 104.109.81.32 20940 (AKAMAI-ASN1)
2 2.18.233.20 16625 (AKAMAI-AS)
1 52.85.173.100 16509 (AMAZON-02)
1 216.58.205.227 15169 (GOOGLE)
1 2.21.161.21 16625 (AKAMAI-AS)
1 151.101.114.110 54113 (FASTLY)
1 185.60.216.19 32934 (FACEBOOK)
1 162.247.242.19 23467 (NEWRELIC-...)
1 185.60.216.35 32934 (FACEBOOK)
1 185.60.216.15 32934 (FACEBOOK)
1 204.109.13.121 22510 (BRAINTREE...)
1 2 176.120.18.70 198911 (BML-AS)
1 23.43.126.231 20940 (AKAMAI-ASN1)
43 22
1    104.25.78.27 (San Francisco, United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)
gum.co
7    104.20.11.72 (San Francisco, United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)
gumroad.com
static-2.gumroad.com
12    104.20.114.30 (San Francisco, United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)
assets.gumroad.com
1    52.216.128.101 (Ashburn, United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)
PTR: s3-1.amazonaws.com
s3.amazonaws.com
5    216.58.205.238 (Mountain View, United States)

ASN15169 (GOOGLE - Google LLC, US)
PTR: fra15s24-in-f14.1e100.net
www.google-analytics.com
1    216.58.205.228 (Mountain View, United States)

ASN15169 (GOOGLE - Google LLC, US)
PTR: fra15s24-in-f4.1e100.net
www.google.com
1    104.20.115.30 (San Francisco, United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)
assets.gumroad.com
1    151.101.112.176 (San Francisco, United States)

ASN54113 (FASTLY - Fastly, US)
js.stripe.com
1    74.125.206.156 (Mountain View, United States)

ASN15169 (GOOGLE - Google LLC, US)
PTR: wk-in-f156.1e100.net
stats.g.doubleclick.net
1    104.109.81.32 (Amsterdam, Netherlands)

ASN20940 (AKAMAI-ASN1, US)
PTR: a104-109-81-32.deploy.static.akamaitechnologies.com
js.braintreegateway.com
2    2.18.233.20 (European Union)

ASN16625 (AKAMAI-AS - Akamai Technologies, Inc., US)
www.paypalobjects.com
1    52.85.173.100 (Seattle, United States)

ASN16509 (AMAZON-02 - Amazon.com, Inc., US)
PTR: server-52-85-173-100.fra6.r.cloudfront.net
content.jwplatform.com
1    216.58.205.227 (Mountain View, United States)

ASN15169 (GOOGLE - Google LLC, US)
PTR: fra15s24-in-f3.1e100.net
www.gstatic.com
1    2.21.161.21 (European Union)

ASN16625 (AKAMAI-AS - Akamai Technologies, Inc., US)
www.paypal.com
1    151.101.114.110 (San Francisco, United States)

ASN54113 (FASTLY - Fastly, US)
js-agent.newrelic.com
1    185.60.216.19 (Ireland)

ASN32934 (FACEBOOK - Facebook, Inc., US)
connect.facebook.net
1    162.247.242.19 (United States)

ASN23467 (NEWRELIC-AS-1 - New Relic, US)
PTR: bam-7.nr-data.net
bam.nr-data.net
1    185.60.216.35 (Ireland)

ASN32934 (FACEBOOK - Facebook, Inc., US)
www.facebook.com
1    185.60.216.15 (Ireland)

ASN32934 (FACEBOOK - Facebook, Inc., US)
graph.facebook.com
1    204.109.13.121 (United States)

ASN22510 (BRAINTREEPAYMENTSOLUTIONS - Braintree Payment Solutions, LLC, US)
PTR: api.braintreegateway.com
api.braintreegateway.com
2    176.120.18.70 (United States)

ASN198911 (BML-AS, US)
b.stats.paypal.com
dub.stats.paypal.com
1    23.43.126.231 (Amsterdam, Netherlands)

ASN20940 (AKAMAI-ASN1, US)
PTR: a23-43-126-231.deploy.static.akamaitechnologies.com
checkout.paypal.com
Domain Requested by
13 assets.gumroad.com gumroad.com
assets.gumroad.com
5 www.google-analytics.com assets.gumroad.com
gumroad.com
www.google-analytics.com
5 gumroad.com assets.gumroad.com
2 www.paypalobjects.com assets.gumroad.com
js.braintreegateway.com
2 static-2.gumroad.com gumroad.com
1 checkout.paypal.com
1 dub.stats.paypal.com
1 b.stats.paypal.com 1 redirects
1 api.braintreegateway.com js.braintreegateway.com
1 graph.facebook.com assets.gumroad.com
1 www.facebook.com
1 bam.nr-data.net js-agent.newrelic.com
1 connect.facebook.net assets.gumroad.com
1 js-agent.newrelic.com assets.gumroad.com
1 www.paypal.com www.paypalobjects.com
1 www.gstatic.com www.google.com
1 content.jwplatform.com assets.gumroad.com
1 js.braintreegateway.com assets.gumroad.com
1 stats.g.doubleclick.net gumroad.com
1 js.stripe.com gumroad.com
1 www.google.com assets.gumroad.com
1 s3.amazonaws.com gumroad.com
1 gum.co 1 redirects
43 23

This site contains links to these domains. Also see Links.

Domain
itunes.apple.com
play.google.com
twitter.com
gum.co
www.facebook.com
Subject Issuer Validity Valid
gumroad.com
DigiCert SHA2 Extended Validation Server CA		 2017-08-09 -
2019-10-23		 2 years crt.sh
ssl472776.cloudflaressl.com
COMODO ECC Domain Validation Secure Server CA 2		 2018-03-06 -
2018-09-12		 6 months crt.sh

This page contains 3 frames:

Primary Page: https://gumroad.com/l/Systematic
Frame ID: 6A4244163490FA83F3851CE6B4D53BB
Requests: 43 HTTP requests in this frame

Frame: https://www.paypalobjects.com/webstatic/r/fb/fb-all-prod.pp.min.js
Frame ID: 5C6577B334F08B86AF55E35D9444D76A
Requests: 1 HTTP requests in this frame

Frame: https://dub.stats.paypal.com/counter2.cgi
Frame ID: 789D462A38F6DB52216A2A0B0EC5E318
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page URL History Show full URLs

  1. https://gum.co/Systematic HTTP 301
    https://gumroad.com/l/Systematic Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • env /^d3$/i
Overall confidence: 100%
Detected patterns
  • env /^PAYPAL$/i
Overall confidence: 100%
Detected patterns
  • env /^requirejs$/i
Overall confidence: 100%
Detected patterns
  • env /^Stripe$/i
Overall confidence: 100%
Detected patterns
  • env /^BugSnag$/i
Overall confidence: 100%
Detected patterns
  • headers server /cloudflare/i
Overall confidence: 100%
Detected patterns
  • script /\/\/connect\.facebook\.net\/[^\/]*\/[a-z]*\.js/i
Overall confidence: 100%
Detected patterns
  • env /^gaGlobal$/i
Overall confidence: 100%
Detected patterns
  • env /^Modernizr$/i
Overall confidence: 100%
Detected patterns
  • env /^NREUM/i
Overall confidence: 100%
Detected patterns
  • env /^optimizely$/i
Overall confidence: 100%
Detected patterns
  • env /^jQuery$/i
Overall confidence: 100%
Detected patterns
  • env /^Recaptcha$/i

Page Statistics

43
Requests

47 %
HTTPS

0 %
IPv6

16
Domains

23
Subdomains

22
IPs

4
Countries

1269 kB
Transfer

4605 kB
Size

9
Cookies

Page URL History

This captures the URL locations of the websites, including HTTP redirects and client-side redirects via JavaScript or Meta fields.

  1. https://gum.co/Systematic HTTP 301
    https://gumroad.com/l/Systematic Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 42
  • https://b.stats.paypal.com/counter.cgi?i=127.0.0.1&p=b8f10d1020866fb275f0419daf414e92&t=1523037972.75&a=14 HTTP 302
  • https://dub.stats.paypal.com/counter2.cgi

43 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request Systematic
gumroad.com/l/
Redirect Chain
  • https://gum.co/Systematic
  • https://gumroad.com/l/Systematic
127 KB
34 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.20.11.72 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
f61e45b26a0434eb047e177920a37ae1e9cfdeeb3ec94333c7d3c40fc1e40721
Security Headers
Name Value
Content-Security-Policy default-src https: 'self'; connect-src 'self' https://bam.nr-data.net https://www.dropbox.com https://s3.amazonaws.com/gumroad https://s3.amazonaws.com/gumroad/ https://2773320153.log.optimizely.com http://2773320153.log.optimizely.com https://www.google.com https://www.gstatic.com https://*.facebook.com https://*.facebook.net https://d2dw6lv4z9w0e2.cloudfront.net/ https://d1bdh6c3ceakz5.cloudfront.net/ https://*.braintreegateway.com https://www.paypalobjects.com https://*.paypal.com https://gumroad.com; font-src * data: blob:; frame-src * data: blob:; img-src * data: blob:; media-src * data: blob:; object-src * data: blob:; script-src 'unsafe-eval' https://js.stripe.com https://api.stripe.com https://*.braintreegateway.com https://www.paypalobjects.com https://www.paypal.com https://www.google-analytics.com https://www.googleadservices.com https://www.google.com https://www.gstatic.com https://cdn.boostable.com/tr.js https://*.facebook.net https://*.facebook.com https://*.newrelic.com https://*.nr-data.net https://www.dropbox.com https://s.ytimg.com https://*.jwpcdn.com https://content.jwplatform.com/libraries/3vz4Z4wu.js https://*.jwpsrv.com blob: 'self' https://gumroad.us3.list-manage.com https://cdn.optimizely.com https://ping.smyte.com https://api.smyte.com https://analytics.twitter.com https://gumroad.com https://assets.gumroad.com; style-src 'self' 'unsafe-inline' https://s.ytimg.com https://ssl.p.jwpcdn.com https://assets.gumroad.com; child-src blob: 'self';
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

:path
/l/Systematic
pragma
no-cache
accept-encoding
gzip, deflate
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8
cache-control
no-cache
:authority
gumroad.com
:scheme
https
:method
GET
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
none
status
200 200 OK
strict-transport-security
max-age=31536000
x-revision
ad7b41e
x-xss-protection
1; mode=block
x-request-id
93345f9f-8955-4fa6-895f-958dc766531d
x-runtime
0.013591
server
cloudflare
etag
W/"218c322e7853d79318f4adeab0750994"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
x-download-options
noopen
content-type
text/html; charset=utf-8
cache-control
max-age=0, private, must-revalidate
content-security-policy
default-src https: 'self'; connect-src 'self' https://bam.nr-data.net https://www.dropbox.com https://s3.amazonaws.com/gumroad https://s3.amazonaws.com/gumroad/ https://2773320153.log.optimizely.com http://2773320153.log.optimizely.com https://www.google.com https://www.gstatic.com https://*.facebook.com https://*.facebook.net https://d2dw6lv4z9w0e2.cloudfront.net/ https://d1bdh6c3ceakz5.cloudfront.net/ https://*.braintreegateway.com https://www.paypalobjects.com https://*.paypal.com https://gumroad.com; font-src * data: blob:; frame-src * data: blob:; img-src * data: blob:; media-src * data: blob:; object-src * data: blob:; script-src 'unsafe-eval' https://js.stripe.com https://api.stripe.com https://*.braintreegateway.com https://www.paypalobjects.com https://www.paypal.com https://www.google-analytics.com https://www.googleadservices.com https://www.google.com https://www.gstatic.com https://cdn.boostable.com/tr.js https://*.facebook.net https://*.facebook.com https://*.newrelic.com https://*.nr-data.net https://www.dropbox.com https://s.ytimg.com https://*.jwpcdn.com https://content.jwplatform.com/libraries/3vz4Z4wu.js https://*.jwpsrv.com blob: 'self' https://gumroad.us3.list-manage.com https://cdn.optimizely.com https://ping.smyte.com https://api.smyte.com https://analytics.twitter.com https://gumroad.com https://assets.gumroad.com; style-src 'self' 'unsafe-inline' https://s.ytimg.com https://ssl.p.jwpcdn.com https://assets.gumroad.com; child-src blob: 'self';
set-cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970; expires=Sat, 06-Apr-19 18:06:10 GMT; path=/; domain=.gumroad.com; HttpOnly _gumroad_guid=b5325620-2847-4571-b58b-05078f91cb2f; path=/; expires=Thu, 06 Apr 2028 18:06:11 -0000; HttpOnly; secure _gumroad_session=eyJzZXNzaW9uX2lkIjoiMTZlYjY3NDIzYjljNDliYjU2MjhlMGQ1MmQyZDlhNTUiLCJfY3NyZl90b2tlbiI6IjZPOGJhRGh1SkI5ODFPMTJqQVNBdm55TGx5cFpra3R2UjE1YUsxY2V5UDg9In0%3D--dbe0e1cca539bef5a2297c6987da9b13c09ce786; path=/; secure; HttpOnly
cf-ray
40762fd4bce897c8-FRA
x-gr
PROD

Redirect headers

date
Fri, 06 Apr 2018 18:06:10 GMT
server
cloudflare
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
status
301
location
https://gumroad.com/l/Systematic
cache-control
max-age=3600
cf-ray
40762fd45b9b641b-FRA
expires
Fri, 06 Apr 2018 19:06:10 GMT
buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
assets.gumroad.com/assets/ 		394 KB
60 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4

Request headers

:path
/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
text/css,*/*;q=0.1
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://gumroad.com/l/Systematic
:scheme
https
:method
GET
Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 02559733574bc91699d28e7c3b1df3ea.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-encoding
gzip
x-amz-version-id
6Mu5cdcSdk1v1ajjQJCSDSbhU6XT8Lx7
last-modified
Wed, 27 Dec 2017 06:17:44 GMT
server
cloudflare
etag
W/"0eadac47857677d7764866e2d85ceb9a"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
text/css
cache-control
public, max-age=14400
cf-ray
40762fd84dff275c-FRA
x-amz-cf-id
K0_O33xMzwyX3ulCX2XvHqhL-Kjk8sFYO7iuGeGrDqjhgIziActDxA==
expires
Fri, 06 Apr 2018 22:06:11 GMT
elliott_and_fib[1]_page7_image1.png
s3.amazonaws.com/gumroad/files/d53598d372c54f4290ddde97c9e23c8b/original/ 		3 KB
4 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://s3.amazonaws.com/gumroad/files/d53598d372c54f4290ddde97c9e23c8b/original/elliott_and_fib[1]_page7_image1.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
HTTP/1.1
Server
52.216.128.101 Ashburn, United States, ASN16509 (AMAZON-02 - Amazon.com, Inc., US),
Reverse DNS
s3-1.amazonaws.com
Software
AmazonS3 /
Resource Hash
765f2949b7e6795aa232215b4e19a4828fe75dc3dff8c40efefa0bfc78a003ba

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

Date
Fri, 06 Apr 2018 18:06:12 GMT
Last-Modified
Sat, 03 Jan 2015 12:23:09 GMT
Server
AmazonS3
x-amz-request-id
D94839A76052C41E
ETag
"35721af18947d7bb485c114e8ac79c23"
Content-Type
image/png
x-amz-version-id
KnNQ7c7QwLueTkpdGPrU4uQ1w_dkgjZX
Accept-Ranges
bytes
Content-Length
3203
x-amz-id-2
/Lp5HED35c98zZUk6AH1Ck9ydGP+N5C9AM37pLw03D0NTBbKF+IUbdV/NDpuVOwsfGe0JvCdU+E=
core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
assets.gumroad.com/assets/ 		500 KB
140 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e

Request headers

:path
/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
*/*
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://gumroad.com/l/Systematic
:scheme
https
:method
GET
Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 ef5b1da3868df2653533c7c68edf2b96.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Miss from cloudfront
status
200
content-encoding
gzip
x-amz-version-id
Bwq2Ec76MKIG9gMRFG8z.lV0PzLSTgIy
last-modified
Mon, 02 Apr 2018 18:05:34 GMT
server
cloudflare
etag
W/"e1fbb73fc2fc975bd2a92f33f5dd04d9"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
application/javascript
cache-control
public, max-age=14400
cf-ray
40762fd84e00275c-FRA
x-amz-cf-id
Xhs_Gqp82NFGihu6XdGagKPGvQThPGF3J30osDcmwt3DPRMhg_TA3A==
expires
Fri, 06 Apr 2018 22:06:11 GMT
Systematic_20and_20Algo_20Trading-1.jpg
static-2.gumroad.com/res/gumroad/5165780067600/asset_previews/b3766a4fee4531c63fc62d58a634b389/retina/ 		57 KB
57 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://static-2.gumroad.com/res/gumroad/5165780067600/asset_previews/b3766a4fee4531c63fc62d58a634b389/retina/Systematic_20and_20Algo_20Trading-1.jpg
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.20.11.72 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
9a73e0e0b7ac19d54673a6b5f54edac3746b9842668e5228a2e0a5f6079f2606
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

:path
/res/gumroad/5165780067600/asset_previews/b3766a4fee4531c63fc62d58a634b389/retina/Systematic_20and_20Algo_20Trading-1.jpg
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
static-2.gumroad.com
referer
https://gumroad.com/l/Systematic
:scheme
https
:method
GET
Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
vary
Accept-Encoding
cf-cache-status
HIT
x-amz-request-id
EE0EAA20C2413B42
cf-ray
40762fd97a7997c8-FRA
status
200
content-length
58140
x-amz-id-2
IrBhNdA4JSOIQWlIFCPFtuNjsmdKrpsf2fhgmYofZmRjRBakT/4nYf0/1A0pgc0uzUE8XXvNk0o=
last-modified
Fri, 23 Mar 2018 15:10:01 GMT
server
cloudflare
etag
"80c3a40217b8fcc48fac384a886a39db"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=31536000
x-amz-version-id
3Vn4BFzVJjDQhqE2qC5AON5AW9EybncF
cache-control
public, max-age=14400
accept-ranges
bytes
content-type
image/jpeg
expires
Fri, 06 Apr 2018 22:06:11 GMT
spinner-877441333535e8f90b8e35644efbc42e1be795f5d4e8c289c939a4e885e8f6ec.png
assets.gumroad.com/assets/ 		3 KB
3 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/spinner-877441333535e8f90b8e35644efbc42e1be795f5d4e8c289c939a4e885e8f6ec.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
877441333535e8f90b8e35644efbc42e1be795f5d4e8c289c939a4e885e8f6ec

Request headers

:path
/assets/spinner-877441333535e8f90b8e35644efbc42e1be795f5d4e8c289c939a4e885e8f6ec.png
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://gumroad.com/l/Systematic
:scheme
https
:method
GET
Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 e430a35037c484cf19f375480cabfca3.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/png
content-length
2932
last-modified
Mon, 18 Dec 2017 18:19:18 GMT
server
cloudflare
etag
"f6494764ed4cf7c3acb418d192e84243"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
R_zpn6kAiy8315787dXUobIsXkXJox92
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fd89e51275c-FRA
x-amz-cf-id
LZ2iXvW8p42TpiEkIxKOlDw5rwiW5v592jM9B18BYpNj2IxLUazV1A==
expires
Fri, 06 Apr 2018 22:06:11 GMT
analytics.js
www.google-analytics.com/ 		35 KB
14 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: assets.gumroad.com
URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
SPDY
Server
216.58.205.238 Mountain View, United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s24-in-f14.1e100.net
Software
Golfe2 /
Resource Hash
f8ef655ef916e39713ede9c6db56d7ca5618bd82cf5ac991dcd013f05e0fdfc7
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 13 Nov 2017 20:19:12 GMT
server
Golfe2
age
4329
date
Fri, 06 Apr 2018 16:54:02 GMT
vary
Accept-Encoding
content-type
text/javascript
status
200
cache-control
public, max-age=7200
timing-allow-origin
*
alt-svc
hq=":443"; ma=2592000; quic=51303432; quic=51303431; quic=51303339; quic=51303335,quic=":443"; ma=2592000; v="42,41,39,35"
content-length
14597
expires
Fri, 06 Apr 2018 18:54:02 GMT
api.js
www.google.com/recaptcha/ 		807 B
520 B 		Script
General
Check archive.org
Download Go to
Full URL
https://www.google.com/recaptcha/api.js?onload=activateRecaptcha&render=explicit
Requested by
Host: assets.gumroad.com
URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
SPDY
Server
216.58.205.228 Mountain View, United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s24-in-f4.1e100.net
Software
GSE /
Resource Hash
4ce5c7cf46e36167783f71683ed3620b31ac447e6e5b31bf131acffbe715d5fd
Security Headers
Name Value
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
content-encoding
gzip
x-content-type-options
nosniff
server
GSE
x-frame-options
SAMEORIGIN
content-type
text/javascript; charset=UTF-8
status
200
cache-control
private, max-age=300
alt-svc
hq=":443"; ma=2592000; quic=51303432; quic=51303431; quic=51303339; quic=51303335,quic=":443"; ma=2592000; v="42,41,39,35"
content-length
427
x-xss-protection
1; mode=block
expires
Fri, 06 Apr 2018 18:06:11 GMT
truncated
/ 		3 KB
0 		Image
General
Check archive.org
Download Go to Show image
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
89ed1e9120ccd1e8f380f212f588205a25f053e3a533efc3bcbf79bae5ae6675

Request headers

Response headers

Access-Control-Allow-Origin
*
Content-Type
image/svg+xml
truncated
/ 		7 KB
0 		Image
General
Check archive.org
Download Go to Show image
Full URL
data:truncated
Protocol
DATA
Server
-, , ASN (),
Reverse DNS
Software
/
Resource Hash
0d9f4874ff3c90817e99a65a224d97b09f3ef4132cf3eef37ac1afa1645461b8

Request headers

Response headers

Access-Control-Allow-Origin
*
Content-Type
image/svg+xml
loading-14a877697a575fc4744952dbacbee6caa10fef1b93bdde497621ef48824a9860.gif
assets.gumroad.com/assets/ 		2 KB
2 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/loading-14a877697a575fc4744952dbacbee6caa10fef1b93bdde497621ef48824a9860.gif
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
14a877697a575fc4744952dbacbee6caa10fef1b93bdde497621ef48824a9860

Request headers

:path
/assets/loading-14a877697a575fc4744952dbacbee6caa10fef1b93bdde497621ef48824a9860.gif
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 002c7dd628aeaafbb16627d6bb5046c9.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/gif
content-length
1737
last-modified
Sun, 19 Nov 2017 09:04:23 GMT
server
cloudflare
etag
"e79a33cd096bd278bb77667c60f29542"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
OXBVMEr7EMdrQ_utZFYESYuuC9_inCYu
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fd97f23275c-FRA
x-amz-cf-id
OCynfngql54-HrGyxQYec1ErR4eGA2xPfXpsCtZ3IlUGJ89RskPIgg==
expires
Fri, 06 Apr 2018 22:06:11 GMT
patterns-f40ed85c07b5849d8f9cc4e044cb8fdbe5a88df0983fd17c2b1c329a8c289e87.png
assets.gumroad.com/assets/product/ 		7 KB
7 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/product/patterns-f40ed85c07b5849d8f9cc4e044cb8fdbe5a88df0983fd17c2b1c329a8c289e87.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
f40ed85c07b5849d8f9cc4e044cb8fdbe5a88df0983fd17c2b1c329a8c289e87

Request headers

:path
/assets/product/patterns-f40ed85c07b5849d8f9cc4e044cb8fdbe5a88df0983fd17c2b1c329a8c289e87.png
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 422c27fd162aa764e1b5acefb44b4bee.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/png
content-length
6668
last-modified
Sun, 19 Nov 2017 09:04:24 GMT
server
cloudflare
etag
"1672ae2489378c7d3bd35efe46322a0c"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
tkHjPyDpvqcqTPyIFIB5Z.ayfvWI47Fa
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fd97f25275c-FRA
x-amz-cf-id
GzX9YmhpS8B5uA9_eJB8JXT9d_O1odu_PJzDcZh82VywEvuzAXTrtQ==
expires
Fri, 06 Apr 2018 22:06:11 GMT
icons-3938f0d900f636eba9ed4a7a5251f826fad9086f535e44a5ee8228631ccb16ff.png
assets.gumroad.com/assets/ 		41 KB
41 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/icons-3938f0d900f636eba9ed4a7a5251f826fad9086f535e44a5ee8228631ccb16ff.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
3938f0d900f636eba9ed4a7a5251f826fad9086f535e44a5ee8228631ccb16ff

Request headers

:path
/assets/icons-3938f0d900f636eba9ed4a7a5251f826fad9086f535e44a5ee8228631ccb16ff.png
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 54430e3a116fc3eedb9a0318cb1ee1e9.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/png
content-length
41675
last-modified
Sun, 17 Dec 2017 08:18:53 GMT
server
cloudflare
etag
"fe57a1d4e7c961cebd24462ee71870ea"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
D0klBVd7Tzv8c1buT4fqcYWorGIZQkks
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fd97f26275c-FRA
x-amz-cf-id
jdYg--V1WWu3r7GSC2YXDk87R1_6gT_jpF86P5Fvcu2VEYefHY_kJQ==
expires
Fri, 06 Apr 2018 22:06:11 GMT
Copy_of_me_at_2012_awards_smiling_448X336.png
static-2.gumroad.com/res/gumroad/profiles/a934e2c1bd0d3d9a8b86ce1cc68864e5/original/ 		44 KB
45 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://static-2.gumroad.com/res/gumroad/profiles/a934e2c1bd0d3d9a8b86ce1cc68864e5/original/Copy_of_me_at_2012_awards_smiling_448X336.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.20.11.72 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
788ad17c4c024e534c30e968a05cf670b9346232a544207a35e198c7eee1af63
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

:path
/res/gumroad/profiles/a934e2c1bd0d3d9a8b86ce1cc68864e5/original/Copy_of_me_at_2012_awards_smiling_448X336.png
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
static-2.gumroad.com
referer
https://gumroad.com/l/Systematic
:scheme
https
:method
GET
Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
vary
Accept-Encoding
cf-cache-status
HIT
x-amz-request-id
B11689AAD2CF5D7F
cf-ray
40762fd9bad797c8-FRA
status
200
content-length
45331
x-amz-id-2
R5FC6uk7w/ba5cjC61t8UPrfnXmMDP1AItmarHicfIg17VxYbv5pBEfDzVEdvtDHhekaGy1n/q8=
last-modified
Fri, 06 Sep 2013 08:15:45 GMT
server
cloudflare
etag
"5afd41cf10fcaf1b19260b1e66dfe538"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security
max-age=31536000
x-amz-version-id
null
cache-control
public, max-age=14400
accept-ranges
bytes
content-type
image/png
expires
Fri, 06 Apr 2018 22:06:11 GMT
remove_button-450a10032133b6c64a23b013908bf27580250091c79d637e44405871f8763c67.svg
assets.gumroad.com/assets/ 		3 KB
2 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/remove_button-450a10032133b6c64a23b013908bf27580250091c79d637e44405871f8763c67.svg
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
450a10032133b6c64a23b013908bf27580250091c79d637e44405871f8763c67

Request headers

:path
/assets/remove_button-450a10032133b6c64a23b013908bf27580250091c79d637e44405871f8763c67.svg
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 0be769c7e09c2ff80afb194a85a78b4c.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-encoding
gzip
x-amz-version-id
s.VkHQIDyob1_rS3Lo2plHK8lu5MrM2C
last-modified
Fri, 08 Dec 2017 12:15:24 GMT
server
cloudflare
etag
W/"cb59c41d35580d40f87a6261a925d13f"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
image/svg+xml
cache-control
public, max-age=14400
cf-ray
40762fd98f29275c-FRA
x-amz-cf-id
Zt55gynCmRdRXZksimP2J1jxg9EefpZinJWfFvvzoSudverSdxam3g==
expires
Fri, 06 Apr 2018 22:06:11 GMT
select_dropdown_indicator_dark-0cc8315645bddaea5c584e22a20d0abfc956e643ae626752534a3df063df5a98.png
assets.gumroad.com/assets/ 		15 KB
16 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/select_dropdown_indicator_dark-0cc8315645bddaea5c584e22a20d0abfc956e643ae626752534a3df063df5a98.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
0cc8315645bddaea5c584e22a20d0abfc956e643ae626752534a3df063df5a98

Request headers

:path
/assets/select_dropdown_indicator_dark-0cc8315645bddaea5c584e22a20d0abfc956e643ae626752534a3df063df5a98.png
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 940b367f846b05ee5d0f25268ff80731.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/png
content-length
15493
last-modified
Sun, 19 Nov 2017 09:04:27 GMT
server
cloudflare
etag
"4baedc2f9c921d4984bb2a02e7b17afb"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
aElbmF9y37qJB0UiAPpvBevAcYWvWpQ_
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fd98f2a275c-FRA
x-amz-cf-id
kssN2vk4N1e9YuUdDfMb5Ay4pPqfvIz3DdqdYsgvwb7bRETZMcASAw==
expires
Fri, 06 Apr 2018 22:06:11 GMT
header_bar-bd3be3db872f96368507899b9f29f6e4acdd64c84dfc132c2f7366924c900b52.png
assets.gumroad.com/assets/ 		146 B
668 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://assets.gumroad.com/assets/header_bar-bd3be3db872f96368507899b9f29f6e4acdd64c84dfc132c2f7366924c900b52.png
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
bd3be3db872f96368507899b9f29f6e4acdd64c84dfc132c2f7366924c900b52

Request headers

:path
/assets/header_bar-bd3be3db872f96368507899b9f29f6e4acdd64c84dfc132c2f7366924c900b52.png
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 42784a7a05b9d149cd97ebe4008edeea.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/png
content-length
146
last-modified
Sun, 19 Nov 2017 09:04:17 GMT
server
cloudflare
etag
"ac67578690f0bda257e2b4bd2abca6f5"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
ztrCNLwfE7S4jaPB8sxUdHDYxxDtg5tM
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fd98f2d275c-FRA
x-amz-cf-id
s5Dqjp_E_NAn13cZBbDs_uBKoS7QJpaT-600w9i8Z3L0aWuJc0BNMA==
expires
Fri, 06 Apr 2018 22:06:11 GMT
gumicons-88a061ee57995b0a5489fb43a0b4b3968903bff55b8d92fee120d36cb55cfa08.woff
assets.gumroad.com/assets/ 		16 KB
17 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://assets.gumroad.com/assets/gumicons-88a061ee57995b0a5489fb43a0b4b3968903bff55b8d92fee120d36cb55cfa08.woff
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.115.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
88a061ee57995b0a5489fb43a0b4b3968903bff55b8d92fee120d36cb55cfa08

Request headers

:path
/assets/gumicons-88a061ee57995b0a5489fb43a0b4b3968903bff55b8d92fee120d36cb55cfa08.woff
pragma
no-cache
origin
https://gumroad.com
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
*/*
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
Origin
https://gumroad.com

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 d11c3c1a97f28c7ab55853182a433fa2.cloudfront.net (CloudFront)
vary
Origin
age
75047
cf-ray
40762fd99a522666-FRA
x-cache
Hit from cloudfront
status
200
content-length
16464
last-modified
Mon, 26 Mar 2018 20:38:06 GMT
server
cloudflare
etag
"057fd545f5054614df7f37d9d2262db5"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
access-control-max-age
3000
access-control-allow-methods
GET, POST, PUT
x-amz-version-id
N0xKTa92S3oE89_91k0OJoiHRm8ljf_I
access-control-allow-origin
https://gumroad.com
access-control-expose-headers
ETag, Accept-Ranges, Content-Encoding, Content-Length, Content-Range
access-control-allow-credentials
true
set-cookie
__cfduid=d6669ae78a815675ebbf7e588e56b24521523037971; expires=Sat, 06-Apr-19 18:06:11 GMT; path=/; domain=.gumroad.com; HttpOnly
accept-ranges
bytes
content-type
binary/octet-stream
x-amz-cf-id
mBeroOuDzzlhPaBwC-yw3wKaSJ_quwr2TpfYbCIfYGc4yy4k98344g==
product-0a07ef1723bb50bca4545334796be3a0c3c8a68deb2832c91e7f22688041129e.js
assets.gumroad.com/assets/gr-built/boot/ 		917 KB
246 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://assets.gumroad.com/assets/gr-built/boot/product-0a07ef1723bb50bca4545334796be3a0c3c8a68deb2832c91e7f22688041129e.js
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
0a07ef1723bb50bca4545334796be3a0c3c8a68deb2832c91e7f22688041129e

Request headers

:path
/assets/gr-built/boot/product-0a07ef1723bb50bca4545334796be3a0c3c8a68deb2832c91e7f22688041129e.js
pragma
no-cache
cookie
__cfduid=dd5cb5c78b1fc3efd710570f43939915f1523037970
accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
*/*
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://gumroad.com/l/Systematic
:scheme
https
:method
GET
Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
via
1.1 5e6663e1b6bfcd319fbf11ba3c6a1259.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-encoding
gzip
x-amz-version-id
o27jFvJvot_GcqmhNR_woCSaKwf9vaU5
last-modified
Fri, 30 Mar 2018 06:35:14 GMT
server
cloudflare
etag
W/"56a94a539ddf2547f1156b749096793a"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
application/javascript
cache-control
public, max-age=14400
cf-ray
40762fd9ef78275c-FRA
x-amz-cf-id
LzTWyV91qHWsENS1dQDMiVsY3MY5_YN699Fo-6lRg7QK6gLF9Pth5w==
expires
Fri, 06 Apr 2018 22:06:11 GMT
/
js.stripe.com/v2/ 		62 KB
21 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://js.stripe.com/v2/
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
SPDY
Server
151.101.112.176 San Francisco, United States, ASN54113 (FASTLY - Fastly, US),
Reverse DNS
Software
AmazonS3 /
Resource Hash
0e8db4132320e10a0859d8e8a339032f36bcf6ad5ee7251ca996a66ed8ce0062
Security Headers
Name Value
Strict-Transport-Security max-age=31556926; includeSubDomains; preload

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
content-encoding
gzip
vary
Accept-Encoding
age
59
x-cache
HIT
status
200
content-length
20589
x-amz-id-2
RqC66/Fo/ULmptL/Tm4ELvTdZhJaNhB3J51b5vsMhmB2mPj2/482hhjYUhVTgHbufn31IyX7530=
x-served-by
cache-hhn1538-HHN
timing-allow-origin
*
last-modified
Thu, 15 Mar 2018 21:56:14 GMT
server
AmazonS3
x-timer
S1523037972.647857,VS0,VE0
etag
"ab05d8b0851193aeb25d121f38ce490b"
strict-transport-security
max-age=31556926; includeSubDomains; preload
x-amz-request-id
9E05DDEA8E834470
via
1.1 varnish
cache-control
public, max-age=300
accept-ranges
bytes
content-type
application/javascript; charset=utf-8
x-cache-hits
71
collect
www.google-analytics.com/ 		35 B
101 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.google-analytics.com/collect?v=1&_v=j66&a=571241435&t=pageview&_s=1&dl=https%3A%2F%2Fgumroad.com%2Fl%2FSystematic&ul=en-us&de=UTF-8&dt=Systematic%20and%20Algo%20Development&sd=24-bit&sr=1600x1200&vp=1585x1200&je=0&_u=YGBAiEABB~&jid=1619711080&gjid=1757463840&cid=1883107204.1523037972&tid=UA-29108090-1&_gid=22704506.1523037972&cd1=Not%20logged%20in&z=1562717171
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
SPDY
Server
216.58.205.238 Mountain View, United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
fra15s24-in-f14.1e100.net
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

pragma
no-cache
date
Tue, 03 Apr 2018 08:18:31 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
age
294460
status
200
content-type
image/gif
access-control-allow-origin
*
cache-control
no-cache, no-store, must-revalidate
alt-svc
hq=":443"; ma=2592000; quic=51303432; quic=51303431; quic=51303339; quic=51303335,quic=":443"; ma=2592000; v="42,41,39,35"
content-length
35
expires
Mon, 01 Jan 1990 00:00:00 GMT
collect
stats.g.doubleclick.net/r/ 		35 B
102 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://stats.g.doubleclick.net/r/collect?t=dc&aip=1&_r=3&v=1&_v=j66&tid=UA-29108090-1&cid=1883107204.1523037972&jid=1619711080&gjid=1757463840&_gid=22704506.1523037972&_u=YGBAiEABB~&z=1326292044
Requested by
Host: gumroad.com
URL: https://gumroad.com/l/Systematic
Protocol
SPDY
Server
74.125.206.156 Mountain View, United States, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
wk-in-f156.1e100.net
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

pragma
no-cache
strict-transport-security
max-age=10886400; includeSubDomains; preload
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
date
Fri, 06 Apr 2018 18:06:11 GMT
status
200
content-type
image/gif
access-control-allow-origin
*
cache-control
no-cache, no-store, must-revalidate
alt-svc
hq=":443"; ma=2592000; quic=51303433; quic=51303432; quic=51303431; quic=51303339; quic=51303335,quic=":443"; ma=2592000; v="43,42,41,39,35"
content-length
35
expires
Fri, 01 Jan 1990 00:00:00 GMT
braintree-2.16.0.min.js
js.braintreegateway.com/js/ 		179 KB
51 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://js.braintreegateway.com/js/braintree-2.16.0.min.js
Requested by
Host: assets.gumroad.com
URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
HTTP/1.1
Server
104.109.81.32 Amsterdam, Netherlands, ASN20940 (AKAMAI-ASN1, US),
Reverse DNS
a104-109-81-32.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
c54a1c0ec48facbfee9c692ffd3284d0054a9dc151d8100be5b98fbd69d89802
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

Strict-Transport-Security
max-age=31536000
Content-Encoding
gzip
Last-Modified
Thu, 05 Apr 2018 20:30:42 GMT
Server
nginx
ETag
"5ac68772-2cb36"
Vary
Accept-Encoding
Content-Type
application/javascript
Cache-Control
max-age=21600
Date
Fri, 06 Apr 2018 18:06:11 GMT
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
52249
Expires
Sat, 07 Apr 2018 00:06:11 GMT
checkout.js
www.paypalobjects.com/api/ 		1 MB
190 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.paypalobjects.com/api/checkout.js
Requested by
Host: assets.gumroad.com
URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
SPDY
Server
2.18.233.20 , European Union, ASN16625 (AKAMAI-AS - Akamai Technologies, Inc., US),
Reverse DNS
Software
Apache /
Resource Hash
63476dc048359df99f19faec951826540f0dcb8b83eb04cbf308c01d69dec7d9
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:11 GMT
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Wed, 04 Apr 2018 00:44:53 GMT
server
Apache
vary
Accept-Encoding
content-type
application/x-javascript
status
200
cache-control
max-age=86400
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-length
194331
expires
Sat, 07 Apr 2018 18:06:11 GMT
3vz4Z4wu.js
content.jwplatform.com/libraries/ 		161 KB
50 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://content.jwplatform.com/libraries/3vz4Z4wu.js
Requested by
Host: assets.gumroad.com
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Full URL
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General
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Download Go to
Full URL
https://gumroad.com/links/ZqSgJ/user_info
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https://gumroad.com/links/ZqSgJ/increment_views
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URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
H2
Security
TLS 1.2, ECDHE_ECDSA, AES_128_GCM
Server
104.20.114.30 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
ff9d9d0b46c9057337f3c173118d6dd4e6f798bc7f4e7fbad2314a1baede749b

Request headers

:path
/assets/empty_profile_picture-ff9d9d0b46c9057337f3c173118d6dd4e6f798bc7f4e7fbad2314a1baede749b.jpg
pragma
no-cache
cookie
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accept-encoding
gzip, deflate
user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
image/webp,image/apng,image/*,*/*;q=0.8
cache-control
no-cache
:authority
assets.gumroad.com
referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
:scheme
https
:method
GET
Referer
https://assets.gumroad.com/assets/buyers-f809022a55a98973f6a3b306bd0cb682fc102c3f2abdecc49d691820b258ddb4.css
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:12 GMT
via
1.1 b451ce1932d9b97c4ef54f2f37ecb931.cloudfront.net (CloudFront)
cf-cache-status
HIT
x-cache
Hit from cloudfront
status
200
content-type
image/jpeg
content-length
8269
last-modified
Sun, 19 Nov 2017 09:03:43 GMT
server
cloudflare
etag
"ffcbb98d1a5ba55d2773c19616300e65"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
x-amz-version-id
P.tDoTxssQquCv_QobREK83320.ZPolr
cache-control
public, max-age=14400
accept-ranges
bytes
cf-ray
40762fe11dbf275c-FRA
x-amz-cf-id
01PJrc6BAaRozfHrN3OIW4JN_HB5DhIw_5RNEJtTjE7YjWuSCRAuEw==
expires
Fri, 06 Apr 2018 22:06:12 GMT
1
gumroad.com/customer_surcharge/MrjnM3K8wmf0IaRgNKPxjw==/5165780067600/0/2500/ 		223 B
2 KB 		XHR
General
Check archive.org
Download Go to
Full URL
https://gumroad.com/customer_surcharge/MrjnM3K8wmf0IaRgNKPxjw==/5165780067600/0/2500/1?postal_code=&country=&physical=false
Requested by
Host: assets.gumroad.com
URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
104.20.11.72 San Francisco, United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
7f1d5a097aa232c06cc2b16309a18142cb5554cfd92c6a7cbfb55cdf51a483dc
Security Headers
Name Value
Content-Security-Policy default-src https: 'self'; connect-src 'self' https://bam.nr-data.net https://www.dropbox.com https://s3.amazonaws.com/gumroad https://s3.amazonaws.com/gumroad/ https://2773320153.log.optimizely.com http://2773320153.log.optimizely.com https://www.google.com https://www.gstatic.com https://*.facebook.com https://*.facebook.net https://d2dw6lv4z9w0e2.cloudfront.net/ https://d1bdh6c3ceakz5.cloudfront.net/ https://*.braintreegateway.com https://www.paypalobjects.com https://*.paypal.com https://gumroad.com; font-src * data: blob:; frame-src * data: blob:; img-src * data: blob:; media-src * data: blob:; object-src * data: blob:; script-src 'unsafe-eval' https://js.stripe.com https://api.stripe.com https://*.braintreegateway.com https://www.paypalobjects.com https://www.paypal.com https://www.google-analytics.com https://www.googleadservices.com https://www.google.com https://www.gstatic.com https://cdn.boostable.com/tr.js https://*.facebook.net https://*.facebook.com https://*.newrelic.com https://*.nr-data.net https://www.dropbox.com https://s.ytimg.com https://*.jwpcdn.com https://content.jwplatform.com/libraries/3vz4Z4wu.js https://*.jwpsrv.com blob: 'self' https://gumroad.us3.list-manage.com https://cdn.optimizely.com https://ping.smyte.com https://api.smyte.com https://analytics.twitter.com https://gumroad.com https://assets.gumroad.com; style-src 'self' 'unsafe-inline' https://s.ytimg.com https://ssl.p.jwpcdn.com https://assets.gumroad.com; child-src blob: 'self';
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

:path
/customer_surcharge/MrjnM3K8wmf0IaRgNKPxjw==/5165780067600/0/2500/1?postal_code=&country=&physical=false
pragma
no-cache
cookie
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accept-encoding
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x-csrf-token
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user-agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
accept
*/*
cache-control
no-cache
:authority
gumroad.com
x-requested-with
XMLHttpRequest
:scheme
https
referer
https://gumroad.com/l/Systematic
:method
GET
Accept
*/*
Referer
https://gumroad.com/l/Systematic
X-CSRF-Token
6O8baDhuJB981O12jASAvnyLlypZkktvR15aK1ceyP8=
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
X-Requested-With
XMLHttpRequest

Response headers

date
Fri, 06 Apr 2018 18:06:12 GMT
content-encoding
gzip
x-content-type-options
nosniff
x-permitted-cross-domain-policies
none
status
200 200 OK
strict-transport-security
max-age=31536000
x-revision
ad7b41e
x-xss-protection
1; mode=block
x-request-id
edeba8eb-7599-4f0f-92fa-5ab157e405cd
x-runtime
0.018045
server
cloudflare
etag
W/"177a8b49bb93de2414e7312e7347424a"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
x-download-options
noopen
content-type
application/json; charset=utf-8
cache-control
max-age=0, private, must-revalidate
content-security-policy
default-src https: 'self'; connect-src 'self' https://bam.nr-data.net https://www.dropbox.com https://s3.amazonaws.com/gumroad https://s3.amazonaws.com/gumroad/ https://2773320153.log.optimizely.com http://2773320153.log.optimizely.com https://www.google.com https://www.gstatic.com https://*.facebook.com https://*.facebook.net https://d2dw6lv4z9w0e2.cloudfront.net/ https://d1bdh6c3ceakz5.cloudfront.net/ https://*.braintreegateway.com https://www.paypalobjects.com https://*.paypal.com https://gumroad.com; font-src * data: blob:; frame-src * data: blob:; img-src * data: blob:; media-src * data: blob:; object-src * data: blob:; script-src 'unsafe-eval' https://js.stripe.com https://api.stripe.com https://*.braintreegateway.com https://www.paypalobjects.com https://www.paypal.com https://www.google-analytics.com https://www.googleadservices.com https://www.google.com https://www.gstatic.com https://cdn.boostable.com/tr.js https://*.facebook.net https://*.facebook.com https://*.newrelic.com https://*.nr-data.net https://www.dropbox.com https://s.ytimg.com https://*.jwpcdn.com https://content.jwplatform.com/libraries/3vz4Z4wu.js https://*.jwpsrv.com blob: 'self' https://gumroad.us3.list-manage.com https://cdn.optimizely.com https://ping.smyte.com https://api.smyte.com https://analytics.twitter.com https://gumroad.com https://assets.gumroad.com; style-src 'self' 'unsafe-inline' https://s.ytimg.com https://ssl.p.jwpcdn.com https://assets.gumroad.com; child-src blob: 'self';
cf-ray
40762fe12d5897c8-FRA
x-gr
PROD
/
graph.facebook.com/v2.8/ 		139 B
518 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://graph.facebook.com/v2.8/?id=https%3A%2F%2Fgumroad.com%2Fl%2FSystematic&method=get&pretty=0&sdk=joey&suppress_http_code=1
Requested by
Host: assets.gumroad.com
URL: https://assets.gumroad.com/assets/core_bundle-32d6e3069870ee72bed92efbdf06452a60398c31da4b7462fa4e0c8ba09b6b5e.js
Protocol
SPDY
Server
185.60.216.15 , Ireland, ASN32934 (FACEBOOK - Facebook, Inc., US),
Reverse DNS
Software
/
Resource Hash
bf5401740907c75c0dd38c62f91290d498c9ed35b00009ca8f4ca6879385ac49
Security Headers
Name Value
Strict-Transport-Security max-age=15552000; preload

Request headers

Referer
https://gumroad.com/l/Systematic
Origin
https://gumroad.com
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36
Content-type
application/x-www-form-urlencoded

Response headers

strict-transport-security
max-age=15552000; preload
content-encoding
gzip
www-authenticate
OAuth "Facebook Platform" "invalid_token" "An access token is required to request this resource."
status
200
x-fb-rev
3790743
content-length
138
pragma
no-cache
x-fb-debug
3D5GH3vuybDZtP0DcBd+Zs9JnkGyMvhhLpcOLXg/HebrBRtXd/klUFjUNFA81QGmp/dY73uYK9aNg2vVG8yYPQ==
x-fb-trace-id
AWuNUUiY+z1
date
Fri, 06 Apr 2018 18:06:12 GMT
vary
Accept-Encoding
content-type
application/json; charset=UTF-8
access-control-allow-origin
*
cache-control
no-store
facebook-api-version
v2.8
expires
Sat, 01 Jan 2000 00:00:00 GMT
configuration
api.braintreegateway.com/merchants/9wjrtp46gjn795bn/client_api/v1/ 		1 KB
1 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://api.braintreegateway.com/merchants/9wjrtp46gjn795bn/client_api/v1/configuration?authorizationFingerprint=1911a254215532730989ec8355a764f80906fd77f7e26c29a45493379a51c524%7Ccreated_at%3D2018-04-06T18%3A06%3A12.649226937%2B0000%26merchant_id%3D9wjrtp46gjn795bn%26public_key%3Dymnrq9wzywq5rgkf&callback=callback_json18b82528763d4abfb85ba30a24a5f680
Requested by
Host: js.braintreegateway.com
URL: https://js.braintreegateway.com/js/braintree-2.16.0.min.js
Protocol
HTTP/1.1
Server
204.109.13.121 , United States, ASN22510 (BRAINTREEPAYMENTSOLUTIONS - Braintree Payment Solutions, LLC, US),
Reverse DNS
api.braintreegateway.com
Software
nginx /
Resource Hash
cafac36b067fd4a1cbe134fd82df107a17ddacfeb23f16fda094609fcd759d82
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

X-Runtime
0.220379
Date
Fri, 06 Apr 2018 18:06:13 GMT
Content-Encoding
gzip
Server
nginx
ETag
W/"6106796d9f16e4108a0df099bd58a791"
X-Cache-Status
BYPASS
Vary
Accept-Encoding, Origin
Content-Type
application/javascript; charset=utf-8
Status
200 OK
Cache-Control
max-age=0, private, must-revalidate
Transfer-Encoding
chunked
Strict-Transport-Security
max-age=31536000; includeSubDomains
Braintree-Service-Origin
clientauth
X-Authentication
authorization_fingerprint
X-Request-Id
9d51c120-a4fa-447c-a1c0-d1c93238bcfc
fb-all-prod.pp.min.js
www.paypalobjects.com/webstatic/r/fb/ Frame 5C65 		57 KB
18 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.paypalobjects.com/webstatic/r/fb/fb-all-prod.pp.min.js
Requested by
Host: js.braintreegateway.com
URL: https://js.braintreegateway.com/js/braintree-2.16.0.min.js
Protocol
SPDY
Server
2.18.233.20 , European Union, ASN16625 (AKAMAI-AS - Akamai Technologies, Inc., US),
Reverse DNS
Software
Apache /
Resource Hash
8aa2ef461041bb66c44541016ca67af00b69b45c76897ce1a5da7cf50cb52385
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

date
Fri, 06 Apr 2018 18:06:12 GMT
x-pad
avoid browser bug
x-content-type-options
nosniff
last-modified
Tue, 29 Aug 2017 05:48:35 GMT
server
Apache
vary
Accept-Encoding
content-type
application/x-javascript
status
200
cache-control
max-age=86400
strict-transport-security
max-age=31536000
accept-ranges
bytes
content-encoding
gzip
content-length
17958
expires
Sat, 07 Apr 2018 18:06:12 GMT
counter2.cgi
dub.stats.paypal.com/ Frame 789D
Redirect Chain
  • https://b.stats.paypal.com/counter.cgi?i=127.0.0.1&p=b8f10d1020866fb275f0419daf414e92&t=1523037972.75&a=14
  • https://dub.stats.paypal.com/counter2.cgi
42 B
494 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://dub.stats.paypal.com/counter2.cgi
Protocol
HTTP/1.1
Server
176.120.18.70 , United States, ASN198911 (BML-AS, US),
Reverse DNS
Software
/
Resource Hash
47043e4823a6c21a8881de789b4185355330b5804629d23f6b43dd93f5265292

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

Date
Fri, 06 Apr 2018 18:06:13 GMT
Cache-Control
private, must-revalidate, proxy-revalidate
Server
Connection
close
ETag
"b1558ca8919e02c4e27f"
Content-Length
42
Content-type
image/jpeg

Redirect headers

Location
https://dub.stats.paypal.com/counter2.cgi
Date
Fri, 06 Apr 2018 18:06:12 GMT
Server
Connection
close
Content-Length
289
Content-Type
text/html; charset=utf-8
pay-with-paypal.png
checkout.paypal.com/pwpp/2.16.0/images/ 		13 KB
13 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://checkout.paypal.com/pwpp/2.16.0/images/pay-with-paypal.png
Protocol
HTTP/1.1
Server
23.43.126.231 Amsterdam, Netherlands, ASN20940 (AKAMAI-ASN1, US),
Reverse DNS
a23-43-126-231.deploy.static.akamaitechnologies.com
Software
nginx /
Resource Hash
fbb6370dbc1f1cca405a337dce28165418b4560a41f1a90c4f8bbb15072d4987
Security Headers
Name Value
Strict-Transport-Security max-age=31536000

Request headers

Referer
https://gumroad.com/l/Systematic
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36

Response headers

Strict-Transport-Security
max-age=31536000
Last-Modified
Thu, 05 Apr 2018 20:30:44 GMT
Server
nginx
ETag
"5ac68774-345b"
Content-Type
image/png
Cache-Control
max-age=86400
Date
Fri, 06 Apr 2018 18:06:13 GMT
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
13403
Expires
Sat, 07 Apr 2018 18:06:13 GMT

Verdicts & Comments Add Verdict or Comment

63 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

function| activateRecaptcha object| I18n object| gumroadGa undefined| optimizely object| recaptcha object| Mailcheck function| requirejs function| require function| define object| NREUM function| __nr_require function| $ function| jQuery object| jQuery18301378747313059958 object| html5 object| Modernizr object| Routes string| GoogleAnalyticsObject function| ga object| Bugsnag object| accounting undefined| returnExports object| gaplugins object| gaGlobal object| gaData function| Plugin string| pluginName number| id object| defaults object| keys boolean| windowLoaded object| allCountries object| c function| Evaporate object| d3 object| intlTelInputUtils function| getIEVersion function| Stripe object| ___grecaptcha_cfg boolean| __google_recaptcha_client object| Braintree object| jwDefaults function| webpackJsonpjwplayer function| jwplayer object| grecaptcha object| closure_lm_141676 object| __postRobot__ object| __zalgopromise__ object| __xcomponent__ object| __paypal_braintree_global__ object| paypal function| onLegacyPaymentAuthorize function| watchForLegacyFallback function| onLegacyFallback string| LOG_LEVEL object| __paypal_storage__ object| PAYPAL object| ppxo boolean| grBraintreeClientSetup function| fbAsyncInit object| FB object| PFB_4732 object| callback_json18b82528763d4abfb85ba30a24a5f680

9 Cookies

Domain/Path Name / Value
.gumroad.com/ Name: __stripe_sid
Value: b30ffa39-fad7-4a98-8dd4-555a89e541f6
.gumroad.com/ Name: _gat_sellerTracker
Value: 1
.gumroad.com/ Name: _gat
Value: 1
gumroad.com/ Name: _gumroad_session
Value: eyJzZXNzaW9uX2lkIjoiMTZlYjY3NDIzYjljNDliYjU2MjhlMGQ1MmQyZDlhNTUiLCJfY3NyZl90b2tlbiI6IjZPOGJhRGh1SkI5ODFPMTJqQVNBdm55TGx5cFpra3R2UjE1YUsxY2V5UDg9In0%3D--dbe0e1cca539bef5a2297c6987da9b13c09ce786
.gumroad.com/ Name: _gid
Value: GA1.2.22704506.1523037972
gumroad.com/ Name: _gumroad_guid
Value: b5325620-2847-4571-b58b-05078f91cb2f
.gumroad.com/ Name: __stripe_mid
Value: 49619207-b630-4300-a11f-8f4dc09ead91
.gumroad.com/ Name: _ga
Value: GA1.2.1883107204.1523037972
.gumroad.com/ Name: __cfduid
Value: dd5cb5c78b1fc3efd710570f43939915f1523037970

Security Headers

This page lists any security headers set by the main page. If you want to understand what these mean and how to use them, head on over to this page

Header Value
Content-Security-Policy default-src https: 'self'; connect-src 'self' https://bam.nr-data.net https://www.dropbox.com https://s3.amazonaws.com/gumroad https://s3.amazonaws.com/gumroad/ https://2773320153.log.optimizely.com http://2773320153.log.optimizely.com https://www.google.com https://www.gstatic.com https://*.facebook.com https://*.facebook.net https://d2dw6lv4z9w0e2.cloudfront.net/ https://d1bdh6c3ceakz5.cloudfront.net/ https://*.braintreegateway.com https://www.paypalobjects.com https://*.paypal.com https://gumroad.com; font-src * data: blob:; frame-src * data: blob:; img-src * data: blob:; media-src * data: blob:; object-src * data: blob:; script-src 'unsafe-eval' https://js.stripe.com https://api.stripe.com https://*.braintreegateway.com https://www.paypalobjects.com https://www.paypal.com https://www.google-analytics.com https://www.googleadservices.com https://www.google.com https://www.gstatic.com https://cdn.boostable.com/tr.js https://*.facebook.net https://*.facebook.com https://*.newrelic.com https://*.nr-data.net https://www.dropbox.com https://s.ytimg.com https://*.jwpcdn.com https://content.jwplatform.com/libraries/3vz4Z4wu.js https://*.jwpsrv.com blob: 'self' https://gumroad.us3.list-manage.com https://cdn.optimizely.com https://ping.smyte.com https://api.smyte.com https://analytics.twitter.com https://gumroad.com https://assets.gumroad.com; style-src 'self' 'unsafe-inline' https://s.ytimg.com https://ssl.p.jwpcdn.com https://assets.gumroad.com; child-src blob: 'self';
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Indicators

This is a term in the security industry to describe indicators such as IPs, Domains, Hashes, etc. This does not imply that any of these indicate malicious activity.

api.braintreegateway.com
assets.gumroad.com
b.stats.paypal.com
bam.nr-data.net
checkout.paypal.com
connect.facebook.net
content.jwplatform.com
dub.stats.paypal.com
graph.facebook.com
gum.co
gumroad.com
js-agent.newrelic.com
js.braintreegateway.com
js.stripe.com
s3.amazonaws.com
static-2.gumroad.com
stats.g.doubleclick.net
www.facebook.com
www.google-analytics.com
www.google.com
www.gstatic.com
www.paypal.com
www.paypalobjects.com
104.109.81.32
104.20.11.72
104.20.114.30
104.20.115.30
104.25.78.27
151.101.112.176
151.101.114.110
162.247.242.19
176.120.18.70
185.60.216.15
185.60.216.19
185.60.216.35
2.18.233.20
2.21.161.21
204.109.13.121
216.58.205.227
216.58.205.228
216.58.205.238
23.43.126.231
52.216.128.101
52.85.173.100
74.125.206.156
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