Submitted URL: https://www.memorysafety.fail/
Effective URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Submission: On May 13 via automatic, source certstream-suspicious

Summary

This website contacted 4 IPs in 1 countries across 5 domains to perform 12 HTTP transactions. The main IP is 2a03:b0c0:3:d0::d23:4001, located in Frankfurt am Main, Germany and belongs to DIGITALOCEAN-ASN, US. The main domain is alexgaynor.net.
TLS certificate: Issued by R3 on May 13th 2021. Valid for: 3 months.
This is the only time alexgaynor.net was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

Domain Requested by
5 alexgaynor.net alexgaynor.net
4 fonts.gstatic.com fonts.googleapis.com
2 www.google-analytics.com alexgaynor.net
www.google-analytics.com
1 fonts.googleapis.com alexgaynor.net
1 www.memorysafety.fail 1 redirects
12 5
Subject Issuer Validity Valid
*.alexgaynor.net
R3
2021-05-13 -
2021-08-11
3 months crt.sh
upload.video.google.com
GTS CA 1O1
2021-04-13 -
2021-07-06
3 months crt.sh
*.google-analytics.com
GTS CA 1C3
2021-04-13 -
2021-07-06
3 months crt.sh
*.google.com
GTS CA 1O1
2021-04-13 -
2021-07-06
3 months crt.sh

This page contains 1 frames:

Primary Page: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Frame ID: 15D6EE61047A6F85372634F1772FD4D1
Requests: 12 HTTP requests in this frame

Screenshot


Page URL History Show full URLs

  1. https://www.memorysafety.fail/ HTTP 302
    https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • headers server /^Netlify/i

Page Statistics

12
Requests

100 %
HTTPS

100 %
IPv6

5
Domains

5
Subdomains

4
IPs

1
Countries

178 kB
Transfer

230 kB
Size

3
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://www.memorysafety.fail/ HTTP 302
    https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

12 HTTP transactions

Resource
Path
Size
x-fer
Type
MIME-Type
Primary Request /
alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Redirect Chain
  • https://www.memorysafety.fail/
  • https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
20 KB
8 KB
Document
General
Full URL
https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a03:b0c0:3:d0::d23:4001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
Netlify /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload

Request headers

:method
GET
:authority
alexgaynor.net
:scheme
https
:path
/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
pragma
no-cache
cache-control
no-cache
upgrade-insecure-requests
1
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
accept
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sec-fetch-site
none
sec-fetch-mode
navigate
sec-fetch-user
?1
sec-fetch-dest
document
accept-encoding
gzip, deflate, br
accept-language
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Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

cache-control
public, max-age=0, must-revalidate
content-type
text/html; charset=UTF-8
date
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etag
"27c01ea02aad874f0e26b0bc91714034-ssl-df"
expect-ct
enforce, max-age=31536000, report-uri="https://7f720d12e3f36cbf877cc177a428f4ce.report-uri.io/r/default/ct/enforce"
strict-transport-security
max-age=31536000; includeSubDomains; preload
vary
Accept-Encoding
content-encoding
gzip
server
Netlify
x-nf-request-id
19820250-e127-48d4-b7d7-4ff38177b928
content-length
8153
age
318606

Redirect headers

location
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date
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content-type
text/html; charset=UTF-8
server
ghs
content-length
311
x-xss-protection
0
x-frame-options
SAMEORIGIN
poole.css
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6 KB
2 KB
Stylesheet
General
Full URL
https://alexgaynor.net/css/poole.css
Requested by
Host: alexgaynor.net
URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a03:b0c0:3:d0::d23:4001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload

Request headers

:path
/css/poole.css
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
sec-fetch-mode
no-cors
accept
text/css,*/*;q=0.1
cache-control
no-cache
sec-fetch-dest
style
:authority
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referer
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:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-nf-request-id
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date
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content-encoding
br
server
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age
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etag
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expect-ct
enforce, max-age=31536000, report-uri="https://7f720d12e3f36cbf877cc177a428f4ce.report-uri.io/r/default/ct/enforce"
vary
Accept-Encoding
content-type
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cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000; includeSubDomains; preload
accept-ranges
bytes
content-length
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3 KB
940 B
Stylesheet
General
Full URL
https://alexgaynor.net/css/syntax.css
Requested by
Host: alexgaynor.net
URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a03:b0c0:3:d0::d23:4001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
Netlify /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload

Request headers

:path
/css/syntax.css
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
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sec-fetch-mode
no-cors
accept
text/css,*/*;q=0.1
cache-control
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sec-fetch-dest
style
:authority
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referer
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:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-nf-request-id
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date
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content-encoding
br
server
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age
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etag
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expect-ct
enforce, max-age=31536000, report-uri="https://7f720d12e3f36cbf877cc177a428f4ce.report-uri.io/r/default/ct/enforce"
vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000; includeSubDomains; preload
accept-ranges
bytes
content-length
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hyde.css
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4 KB
1 KB
Stylesheet
General
Full URL
https://alexgaynor.net/css/hyde.css
Requested by
Host: alexgaynor.net
URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a03:b0c0:3:d0::d23:4001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload

Request headers

:path
/css/hyde.css
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
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sec-fetch-mode
no-cors
accept
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cache-control
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sec-fetch-dest
style
:authority
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referer
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:scheme
https
sec-fetch-site
same-origin
:method
GET
Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

x-nf-request-id
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date
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content-encoding
br
server
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age
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etag
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expect-ct
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vary
Accept-Encoding
content-type
text/css; charset=UTF-8
cache-control
public, max-age=0, must-revalidate
strict-transport-security
max-age=31536000; includeSubDomains; preload
accept-ranges
bytes
content-length
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css
fonts.googleapis.com/
4 KB
714 B
Stylesheet
General
Full URL
https://fonts.googleapis.com/css?family=Abril+Fatface|PT+Sans:400,400i,700
Requested by
Host: alexgaynor.net
URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:82f::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
ESF /
Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
content-encoding
gzip
x-content-type-options
nosniff
cross-origin-resource-policy
cross-origin
alt-svc
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x-xss-protection
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last-modified
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server
ESF
date
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x-frame-options
SAMEORIGIN
content-type
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access-control-allow-origin
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cache-control
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timing-allow-origin
*
link
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expires
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analytics.js
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48 KB
19 KB
Script
General
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: alexgaynor.net
URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:829::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
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Request headers

Referer
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User-Agent
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Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
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server
Golfe2
age
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date
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vary
Accept-Encoding
content-type
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cache-control
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cross-origin-resource-policy
cross-origin
alt-svc
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content-length
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expires
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print.css
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253 B
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Stylesheet
General
Full URL
https://alexgaynor.net/css/print.css
Requested by
Host: alexgaynor.net
URL: https://alexgaynor.net/2019/aug/12/introduction-to-memory-unsafety-for-vps-of-engineering/
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a03:b0c0:3:d0::d23:4001 Frankfurt am Main, Germany, ASN14061 (DIGITALOCEAN-ASN, US),
Reverse DNS
Software
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Resource Hash
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Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload

Request headers

:path
/css/print.css
pragma
no-cache
accept-encoding
gzip, deflate, br
accept-language
en-US
user-agent
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sec-fetch-mode
no-cors
accept
text/css,*/*;q=0.1
cache-control
no-cache
sec-fetch-dest
style
:authority
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referer
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:scheme
https
sec-fetch-site
same-origin
:method
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Referer
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User-Agent
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Response headers

x-nf-request-id
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date
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server
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age
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etag
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expect-ct
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strict-transport-security
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content-type
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cache-control
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accept-ranges
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content-length
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Font
General
Full URL
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Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Abril+Fatface|PT+Sans:400,400i,700
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:802::2003 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
sffe /
Resource Hash
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Security Headers
Name Value
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Request headers

Origin
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Referer
https://fonts.googleapis.com/
User-Agent
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Response headers

date
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x-content-type-options
nosniff
last-modified
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server
sffe
age
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access-control-allow-origin
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Font
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Full URL
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Requested by
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Protocol
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Security
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Software
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Request headers

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Referer
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User-Agent
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Response headers

date
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x-content-type-options
nosniff
last-modified
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server
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age
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content-type
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Font
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Requested by
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Protocol
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Security
TLS 1.3, , AES_128_GCM
Server
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Security Headers
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Request headers

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Referer
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User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
Thu, 06 May 2021 21:19:48 GMT
x-content-type-options
nosniff
last-modified
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server
sffe
age
603455
content-type
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access-control-allow-origin
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cache-control
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accept-ranges
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timing-allow-origin
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alt-svc
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content-length
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x-xss-protection
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expires
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General
Full URL
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Requested by
Host: fonts.googleapis.com
URL: https://fonts.googleapis.com/css?family=Abril+Fatface|PT+Sans:400,400i,700
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
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Reverse DNS
Software
sffe /
Resource Hash
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Security Headers
Name Value
X-Content-Type-Options nosniff
X-Xss-Protection 0

Request headers

Origin
https://alexgaynor.net
Referer
https://fonts.googleapis.com/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36

Response headers

date
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x-content-type-options
nosniff
last-modified
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server
sffe
age
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content-type
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access-control-allow-origin
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cache-control
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accept-ranges
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timing-allow-origin
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content-length
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x-xss-protection
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expires
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collect
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Requested by
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Protocol
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Security
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Server
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Software
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Resource Hash
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Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://alexgaynor.net/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.72 Safari/537.36
Content-Type
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Response headers

pragma
no-cache
date
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x-content-type-options
nosniff
last-modified
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server
Golfe2
content-type
text/plain
access-control-allow-origin
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cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
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content-length
2
expires
Fri, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

17 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.

object| onbeforexrselect object| ontransitionrun object| ontransitionstart object| ontransitioncancel object| cookieStore function| showDirectoryPicker function| showOpenFilePicker function| showSaveFilePicker boolean| originAgentCluster object| trustedTypes boolean| crossOriginIsolated boolean| doNotTrack function| ga object| google_tag_data object| gaplugins object| gaGlobal object| gaData

3 Cookies

Domain/Path Name / Value
.alexgaynor.net/ Name: _gat
Value: 1
.alexgaynor.net/ Name: _gid
Value: GA1.2.953006240.1620939444
.alexgaynor.net/ Name: _ga
Value: GA1.2.1377607686.1620939444

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
Strict-Transport-Security max-age=31536000; includeSubDomains; preload