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pretextbook.org Open in urlscan Pro
2600:3c00::f03c:91ff:fee2:1e2e  Public Scan

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Submitted URL: http://pretextbook.org/
Effective URL: https://pretextbook.org/
Submission: On May 04 via api from GB — Scanned from GB
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 5 IPs in 3 countries across 5 domains to perform 25 HTTP transactions. The main IP is 2600:3c00::f03c:91ff:fee2:1e2e, located in Richardson, United States and belongs to LINODE-AP Linode, LLC, US. The main domain is pretextbook.org. The Cisco Umbrella rank of the primary domain is 830821.
TLS certificate: Issued by R3 on March 11th 2022. Valid for: 3 months.
This is the only time pretextbook.org was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 20 2600:3c00::f0... 63949 (LINODE-AP...)
1 2606:4700::68... 13335 (CLOUDFLAR...)
1 2a00:1450:400... 15169 (GOOGLE)
2 104.20.229.67 13335 (CLOUDFLAR...)
2 2a00:1450:400... 15169 (GOOGLE)
25 5
20    2600:3c00::f03c:91ff:fee2:1e2e (Richardson, United States)

ASN63949 (LINODE-AP Linode, LLC, US)
pretextbook.org
1    2606:4700::6810:5914 (United States)

ASN13335 (CLOUDFLARENET, US)
cdn.jsdelivr.net
1    2a00:1450:4001:812::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
www.googletagmanager.com
2    104.20.229.67 (None, )

ASN13335 (CLOUDFLARENET, US)
secure.statcounter.com
c.statcounter.com
2    2a00:1450:4001:808::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
www.google-analytics.com
Apex Domain
Subdomains		 Transfer
20 pretextbook.org
pretextbook.org — Cisco Umbrella Rank: 830821
594 KB
2 google-analytics.com
www.google-analytics.com — Cisco Umbrella Rank: 101
20 KB
2 statcounter.com
secure.statcounter.com — Cisco Umbrella Rank: 20182
c.statcounter.com — Cisco Umbrella Rank: 9876
15 KB
1 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 142
40 KB
1 jsdelivr.net
cdn.jsdelivr.net — Cisco Umbrella Rank: 574
535 KB
25 5
Domain Requested by
20 pretextbook.org 1 redirects pretextbook.org
2 www.google-analytics.com www.googletagmanager.com
www.google-analytics.com
1 c.statcounter.com secure.statcounter.com
1 secure.statcounter.com pretextbook.org
1 www.googletagmanager.com pretextbook.org
1 cdn.jsdelivr.net pretextbook.org
25 6
Subject Issuer Validity Valid
pretextbook.org
R3		 2022-03-11 -
2022-06-09		 3 months crt.sh
sni.cloudflaressl.com
Cloudflare Inc ECC CA-3		 2021-07-03 -
2022-07-02		 a year crt.sh
*.google-analytics.com
GTS CA 1C3		 2022-04-11 -
2022-07-04		 3 months crt.sh
us-dallas.statcounter.com
Sectigo RSA Domain Validation Secure Server CA		 2021-11-06 -
2022-12-06		 a year crt.sh

This page contains 1 frames:

Primary Page: https://pretextbook.org/
Frame ID: 9E0200E4D3B86E8767ACB18F09BD8333
Requests: 25 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

PreTeXt

Page URL History Show full URLs

  1. http://pretextbook.org/ HTTP 301
    https://pretextbook.org/ Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • google-analytics\.com/(?:ga|urchin|analytics)\.js
Overall confidence: 100%
Detected patterns
  • googletagmanager\.com/gtag/js
Overall confidence: 100%
Detected patterns
  • statcounter\.com/counter/counter
Overall confidence: 100%
Detected patterns
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?
Overall confidence: 100%
Detected patterns
  • //cdn\.jsdelivr\.net/

Page Statistics

25
Requests

100 %
HTTPS

80 %
IPv6

5
Domains

6
Subdomains

5
IPs

3
Countries

1204 kB
Transfer

2488 kB
Size

5
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. http://pretextbook.org/ HTTP 301
    https://pretextbook.org/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

25 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
pretextbook.org/
Redirect Chain
  • http://pretextbook.org/
  • https://pretextbook.org/
14 KB
14 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
21864b9ba24a959b1f22a07c434c40eb47550afea76d9f485aa018402e7f145d

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36
accept-language
en-GB,en;q=0.9

Response headers

Accept-Ranges
bytes
Connection
keep-alive
Content-Length
14380
Content-Type
text/html
Date
Wed, 04 May 2022 10:28:14 GMT
ETag
"626f48b4-382c"
Last-Modified
Mon, 02 May 2022 02:57:56 GMT
Server
nginx/1.20.1

Redirect headers

Connection
keep-alive
Content-Length
169
Content-Type
text/html
Date
Wed, 04 May 2022 10:28:14 GMT
Location
https://pretextbook.org/
Server
nginx/1.20.1
jquery.min.js
pretextbook.org/js/lib/ 		85 KB
85 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://pretextbook.org/js/lib/jquery.min.js
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
160a426ff2894252cd7cebbdd6d6b7da8fcd319c65b70468f10b6690c45d02ef

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Wed, 11 Dec 2019 04:06:53 GMT
Server
nginx/1.20.1
ETag
"5df06b5d-1538f"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
86927
knowl.js
pretextbook.org/js/lib/ 		14 KB
14 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://pretextbook.org/js/lib/knowl.js
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
53f3db9a8ba8c1a81807084cbcee2c26879da775d1003c450b1af5aa99e8db91

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Fri, 21 Jan 2022 02:51:09 GMT
Server
nginx/1.20.1
ETag
"61ea1f9d-3671"
Content-Type
application/javascript
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
13937
tex-svg.js
cdn.jsdelivr.net/npm/mathjax@3/es5/ 		2 MB
535 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6810:5914 , United States, ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
241840cc338ce7352f16ce707f7291e96d6e01c5c08bd69469a1c8c9f2fa9d54
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

date
Wed, 04 May 2022 10:28:15 GMT
content-encoding
br
x-content-type-options
nosniff
cf-cache-status
HIT
nel
{"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
age
14222
x-jsd-version
3.2.0
x-cache
HIT, HIT
cross-origin-resource-policy
cross-origin
strict-transport-security
max-age=31536000; includeSubDomains; preload
alt-svc
h3=":443"; ma=86400, h3-29=":443"; ma=86400
x-served-by
cache-fra19160-FRA, cache-lcy19249-LCY
timing-allow-origin
*
x-jsd-version-type
version
server
cloudflare
etag
W/"1a9edd-vZIStRN8L6WRYibq5VuB2mXpQ4Q"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
report-to
{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=DJMAsTTDuKrADnC0%2Bh8m%2FOx8%2FDpDE2RzB1KA6HY%2Bex9tdN%2BRDyfKQigU%2FiPMRT7K15dAPX2hjwHKWANJ3otnZwZjE2lRjiJj5gR%2Fsi166n492tXvcZ9bYTYRccmloNUSfw5fF4JV9ADSeyyyYyw%3D"}],"group":"cf-nel","max_age":604800}
content-type
application/javascript; charset=utf-8
access-control-allow-origin
*
access-control-expose-headers
*
cache-control
public, max-age=604800, s-maxage=43200
cf-ray
70608c6c6f540712-LHR
default.css
pretextbook.org/ 		4 KB
4 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://pretextbook.org/default.css
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
fd0b317ae82d37a576d0982d79fc21e7b4a702dc5b7cfb22c8449f058f9296c8

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:57:56 GMT
Server
nginx/1.20.1
ETag
"626f48b4-e92"
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
3730
catalog.css
pretextbook.org/css/0.31/ 		2 KB
2 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://pretextbook.org/css/0.31/catalog.css
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
c7f007ebe64fbf18f6389cc7a66129ecc305d5b7a3158b156b58197eaf447e64

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Sat, 30 Nov 2019 00:37:44 GMT
Server
nginx/1.20.1
ETag
"5de1b9d8-693"
Content-Type
text/css
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
1683
runestone_logo_small.png
pretextbook.org/images/ 		58 KB
58 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/runestone_logo_small.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
8dacd1fb24828bf20553c5f78f640c874207ef62f5a1af918ef9522af6e88266

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-e68d"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
59021
nsf1-triple-trans.png
pretextbook.org/images/ 		44 KB
44 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/nsf1-triple-trans.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
74e5af129359768ce4d64fbc1685058fe0516c71423a25b9055ea7d3b81b690b

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-aeeb"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
44779
20469_UofPS_horiz_maroonRGB300-trans.png
pretextbook.org/images/ 		26 KB
26 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/20469_UofPS_horiz_maroonRGB300-trans.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
a77fe79a3634fafe241b49a1fe967052ad25b0d08c92290d518efc9d20c3f969

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-680c"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
26636
aimlogo-left.png
pretextbook.org/images/ 		13 KB
13 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/aimlogo-left.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
400b626384ef2826c6187b4b9f68e280a45f96aac2c041db288f0ce5e1579cc5

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-3441"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
13377
american-action-fund.png
pretextbook.org/images/ 		215 KB
215 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/american-action-fund.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
bf850ed742ea99cf0418b502e3c888a947a14eaf1dcf138d65366a5fd48d8b9a

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-35bd7"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
220119
bucknell.png
pretextbook.org/images/ 		51 KB
51 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/bucknell.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
6ba8175664bc64896a725d8bfaae99f489b66055e1b490b9a8950df63eea5220

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-cd03"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
52483
OPEN%20OREGON%20LOGO%20HORIZONTAL%20COLOR.png
pretextbook.org/images/ 		32 KB
32 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/OPEN%20OREGON%20LOGO%20HORIZONTAL%20COLOR.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
9e17074daf6529179fc0818938657c12cf7d3dd9a20456519ac086bb4b3a3f89

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-7f65"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
32613
filigris-works.gif
pretextbook.org/images/ 		4 KB
4 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/filigris-works.gif
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
89cb2a011d0808d6a09a7ace7faf25a2b9a4869eb4c0637bff5e00ad736f2ade

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-ed8"
Content-Type
image/gif
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
3800
Shuttleworth%20Funded.png
pretextbook.org/images/ 		3 KB
3 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/images/Shuttleworth%20Funded.png
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
5404b7a9da70d528f4bb8d35082899bf0cf998bb79008994620a0503a695a7d3

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-bd7"
Content-Type
image/png
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
3031
js
www.googletagmanager.com/gtag/ 		104 KB
40 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.googletagmanager.com/gtag/js?id=UA-48811660-1
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:812::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
e9b7c1e1335380ccfce5c55fb3f014c9dcf5286e9d4ce9b19e12f1d3f105abbb
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

date
Wed, 04 May 2022 10:28:15 GMT
content-encoding
br
vary
Accept-Encoding
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
40726
x-xss-protection
0
last-modified
Wed, 04 May 2022 09:00:00 GMT
server
Google Tag Manager
strict-transport-security
max-age=31536000; includeSubDomains
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
access-control-allow-headers
Cache-Control
expires
Wed, 04 May 2022 10:28:15 GMT
body.jpg
pretextbook.org/img/ 		13 KB
13 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/img/body.jpg
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/default.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
00f16fb6e94bcd6a72ebc035b2de4edbf60e7dbedcfa399434a2aa0700df9a80

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/default.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-3502"
Content-Type
image/jpeg
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
13570
container.jpg
pretextbook.org/img/ 		2 KB
3 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/img/container.jpg
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/default.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
7f3089e2e6baaa98b2c70f04e67cbb1d65f407cff3d3bbeb4349b367700ab7d7

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/default.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-927"
Content-Type
image/jpeg
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
2343
header.jpg
pretextbook.org/img/ 		11 KB
11 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/img/header.jpg
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/default.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
61f4131d4f38d157257dbc5284a6ca46cc2e46e6e910c023fd692d9e2636faa8

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/default.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-2b68"
Content-Type
image/jpeg
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
11112
main.gif
pretextbook.org/img/ 		148 B
385 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/img/main.gif
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/default.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
8941b5eb0b5b11bb9519b0e70194737f9fee0bf54d5d2b79eb837c7eb89a286b

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/default.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-94"
Content-Type
image/gif
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
148
counter.js
secure.statcounter.com/counter/ 		42 KB
14 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://secure.statcounter.com/counter/counter.js
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.20.229.67 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
a0bd9bfaf4def6656a9233d93df518c01be681326e72cd9e00aa73fd29702b83

Request headers

Referer
https://pretextbook.org/
accept-language
en-GB,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36
Intervention
<https://www.chromestatus.com/feature/5718547946799104>; level="warning"

Response headers

date
Wed, 04 May 2022 10:28:15 GMT
content-encoding
br
cf-cache-status
HIT
last-modified
Mon, 14 Mar 2022 09:58:11 GMT
server
cloudflare
age
756
etag
W/"622f11b3-a7ae"
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
vary
Accept-Encoding
content-type
application/x-javascript
cache-control
max-age=43200
cf-ray
70608c6d88b175b5-LHR
expires
Wed, 04 May 2022 22:15:39 GMT
li.gif
pretextbook.org/img/ 		199 B
436 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://pretextbook.org/img/li.gif
Requested by
Host: pretextbook.org
URL: https://pretextbook.org/default.css
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
2600:3c00::f03c:91ff:fee2:1e2e Richardson, United States, ASN63949 (LINODE-AP Linode, LLC, US),
Reverse DNS
Software
nginx/1.20.1 /
Resource Hash
d10b7a40034fedcb0d3a5069b6349f490987635baaa6850dbcf8c6adea683219

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/default.css
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

Date
Wed, 04 May 2022 10:28:15 GMT
Last-Modified
Mon, 02 May 2022 02:58:04 GMT
Server
nginx/1.20.1
ETag
"626f48bc-c7"
Content-Type
image/gif
Connection
keep-alive
Accept-Ranges
bytes
Content-Length
199
t.php
c.statcounter.com/ 		192 B
467 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://c.statcounter.com/t.php?sc_project=9664088&u1=C85F1B08A79B4F8BA71B0F9AB6F6D42B&java=1&security=6e60c510&sc_snum=1&sess=5e022a&p=0&rcat=d&rdom=d&rdomg=new&bb=1&jg=new&rr=1.1.1.1.1.1.1.1.1&resolution=1600&h=1200&camefrom=&u=https%3A//pretextbook.org/&t=PreTeXt&invisible=1&sc_rum_e_s=1566&sc_rum_e_e=1571&sc_rum_f_s=0&sc_rum_f_e=1485&get_config=true
Requested by
Host: secure.statcounter.com
URL: https://secure.statcounter.com/counter/counter.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.20.229.67 -, , ASN13335 (CLOUDFLARENET, US),
Reverse DNS
Software
cloudflare /
Resource Hash
eb2697b60c526a1d4980e0874700e7c2b4f43bb9292770f71bb4bb972506e415

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

date
Wed, 04 May 2022 10:28:15 GMT
content-encoding
br
cf-cache-status
DYNAMIC
server
cloudflare
expect-ct
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
cf-ray
70608c6e69d175b5-LHR
p3p
policyref="http://www.statcounter.com/w3c/p3p.xml", CP="ADMa OUR COM NAV NID DSP NOI COR"
access-control-allow-origin
https://pretextbook.org
access-control-allow-credentials
true
content-type
application/json
expires
Mon, 26 Jul 1997 05:00:00 GMT
analytics.js
www.google-analytics.com/ 		49 KB
20 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=UA-48811660-1
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:808::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
a1925038db769477ab74b4df34350c35688a795bb718727b0f4292a4a78a6210
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

accept-language
en-GB,en;q=0.9
Referer
https://pretextbook.org/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Wed, 13 Apr 2022 21:02:38 GMT
server
Golfe2
age
546
date
Wed, 04 May 2022 10:19:09 GMT
vary
Accept-Encoding
content-type
text/javascript
cache-control
public, max-age=7200
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
20006
expires
Wed, 04 May 2022 12:19:09 GMT
collect
www.google-analytics.com/j/ 		1 B
206 B 		XHR
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/j/collect?v=1&_v=j96&a=455844607&t=pageview&_s=1&dl=https%3A%2F%2Fpretextbook.org%2F&ul=en-us&de=UTF-8&dt=PreTeXt&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_u=YEBAAUABAAAAAC~&jid=1863024792&gjid=1743963431&cid=1414622245.1651660096&tid=UA-48811660-1&_gid=819546478.1651660096&_r=1&gtm=2ou520&z=278107156
Requested by
Host: www.google-analytics.com
URL: https://www.google-analytics.com/analytics.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:808::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Referer
https://pretextbook.org/
accept-language
en-GB,en;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.41 Safari/537.36
Content-Type
text/plain

Response headers

pragma
no-cache
date
Wed, 04 May 2022 10:28:15 GMT
x-content-type-options
nosniff
last-modified
Sun, 17 May 1998 03:00:00 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://pretextbook.org
cache-control
no-cache, no-store, must-revalidate
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000,h3-Q050=":443"; ma=2592000,h3-Q046=":443"; ma=2592000,h3-Q043=":443"; ma=2592000,quic=":443"; ma=2592000; v="46,43"
content-length
1
expires
Fri, 01 Jan 1990 00:00:00 GMT

Verdicts & Comments Add Verdict or Comment

27 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| oncontextlost object| oncontextrestored function| structuredClone function| getScreenDetails function| $ function| jQuery number| knowl_id_counter object| knowl_focus_stack_uid object| knowl_focus_stack string| sagecellEvalName number| mjvers function| knowl_click_handler object| MathJax number| sc_project number| sc_invisible string| sc_security string| scJsHost function| _statcounter function| gtag object| dataLayer object| google_tag_manager object| google_tag_data string| GoogleAnalyticsObject function| ga object| gaplugins object| gaGlobal object| gaData

5 Cookies

Domain/Path Name / Value
.pretextbook.org/ Name: sc_is_visitor_unique
Value: rx9664088.1651660096.C85F1B08A79B4F8BA71B0F9AB6F6D42B.1.1.1.1.1.1.1.1.1
.pretextbook.org/ Name: _ga
Value: GA1.2.1414622245.1651660096
.pretextbook.org/ Name: _gid
Value: GA1.2.819546478.1651660096
.pretextbook.org/ Name: _gat_gtag_UA_48811660_1
Value: 1
.statcounter.com/ Name: is_unique
Value: sc9664088.1651660095.0

2 Console Messages

Source Level URL
Text
javascript warning URL: https://pretextbook.org/(Line 136)
Message:
A parser-blocking, cross site (i.e. different eTLD+1) script, https://secure.statcounter.com/counter/counter.js, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.
javascript warning URL: https://pretextbook.org/(Line 136)
Message:
A parser-blocking, cross site (i.e. different eTLD+1) script, https://secure.statcounter.com/counter/counter.js, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.

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.

c.statcounter.com
cdn.jsdelivr.net
pretextbook.org
secure.statcounter.com
www.google-analytics.com
www.googletagmanager.com
104.20.229.67
2600:3c00::f03c:91ff:fee2:1e2e
2606:4700::6810:5914
2a00:1450:4001:808::200e
2a00:1450:4001:812::2008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