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textbooks.open.tudelft.nl Open in urlscan Pro
131.180.77.108  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://textbooks.open.tudelft.nl/
Effective URL: https://textbooks.open.tudelft.nl/textbooks
Submission: On June 13 via api from US — Scanned from NL
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 5 IPs in 4 countries across 4 domains to perform 41 HTTP transactions. The main IP is 131.180.77.108, located in Delft, Netherlands and belongs to TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL. The main domain is textbooks.open.tudelft.nl.
TLS certificate: Issued by R3 on May 16th 2024. Valid for: 3 months.
This is the only time textbooks.open.tudelft.nl was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
1 35 131.180.77.108 1128 (TUDELFT-N...)
2 104.17.25.14 13335 (CLOUDFLAR...)
3 2a00:1450:400... 15169 (GOOGLE)
1 2a01:4f8:c01e... 24940 (HETZNER-AS)
1 2001:4860:480... 15169 (GOOGLE)
41 5
35    131.180.77.108 (Delft, Netherlands)

ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL)
PTR: *.weblog.tudelft.nl
textbooks.open.tudelft.nl
2    104.17.25.14 (None, )

ASN13335 (CLOUDFLARENET, US)
cdnjs.cloudflare.com
3    2a00:1450:4001:806::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)
www.googletagmanager.com
1    2a01:4f8:c01e:7fd::1 (Germany)

ASN24940 (HETZNER-AS, DE)
www.tudelft.nl
1    2001:4860:4802:34::36 (United States)

ASN15169 (GOOGLE, US)
region1.google-analytics.com
Apex Domain
Subdomains		 Transfer
36 tudelft.nl
textbooks.open.tudelft.nl
www.tudelft.nl — Cisco Umbrella Rank: 826772
1 MB
3 googletagmanager.com
www.googletagmanager.com — Cisco Umbrella Rank: 79
264 KB
2 cloudflare.com
cdnjs.cloudflare.com — Cisco Umbrella Rank: 265
13 KB
1 google-analytics.com
region1.google-analytics.com — Cisco Umbrella Rank: 2347
252 B
41 4
Domain Requested by
35 textbooks.open.tudelft.nl 1 redirects textbooks.open.tudelft.nl
3 www.googletagmanager.com textbooks.open.tudelft.nl
www.googletagmanager.com
2 cdnjs.cloudflare.com textbooks.open.tudelft.nl
1 region1.google-analytics.com www.googletagmanager.com
1 www.tudelft.nl textbooks.open.tudelft.nl
41 5

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

Domain
www.tudelft.nl
www.linkedin.com
Subject Issuer Validity Valid
textbooks.open.tudelft.nl
R3		 2024-05-16 -
2024-08-14		 3 months crt.sh
cdnjs.cloudflare.com
E1		 2024-06-02 -
2024-08-31		 3 months crt.sh
*.google-analytics.com
WR2		 2024-05-27 -
2024-08-19		 3 months crt.sh
www.tudelft.nl
ZeroSSL RSA Domain Secure Site CA		 2024-05-26 -
2024-08-24		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://textbooks.open.tudelft.nl/textbooks
Frame ID: B0BE592E384C0A6FB208249292E7A854
Requests: 41 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

TU Delft OPEN Textbooks

Page URL History Show full URLs

  1. http://textbooks.open.tudelft.nl/ HTTP 307
    https://textbooks.open.tudelft.nl/ HTTP 302
    https://textbooks.open.tudelft.nl/textbooks Page URL

Detected technologies

Overall confidence: 100%
Detected patterns
  • bootstrap(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)[^>]*?(?:\.min)?\.js
Overall confidence: 100%
Detected patterns
  • <link[^>]* href=[^>]*?(?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:[^>]*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
  • (?:F|f)o(?:n|r)t-?(?:A|a)wesome(?:.*?([0-9a-fA-F]{7,40}|[\d]+(?:.[\d]+(?:.[\d]+)?)?)|)
Overall confidence: 100%
Detected patterns
Overall confidence: 100%
Detected patterns
  • <!-- (?:End )?Google Tag Manager -->
  • googletagmanager\.com/gtm\.js
  • googletagmanager\.com/gtag/js
Overall confidence: 100%
Detected patterns
  • jquery.*\.js(?:\?ver(?:sion)?=([\d.]+))?
Overall confidence: 100%
Detected patterns
  • jquery-ui.*\.js

Page Statistics

41
Requests

100 %
HTTPS

60 %
IPv6

4
Domains

5
Subdomains

5
IPs

4
Countries

1526 kB
Transfer

2466 kB
Size

4
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://textbooks.open.tudelft.nl/ HTTP 307
    https://textbooks.open.tudelft.nl/ HTTP 302
    https://textbooks.open.tudelft.nl/textbooks Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

41 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request textbooks
textbooks.open.tudelft.nl/
Redirect Chain
  • http://textbooks.open.tudelft.nl/
  • https://textbooks.open.tudelft.nl/
  • https://textbooks.open.tudelft.nl/textbooks
33 KB
8 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PHP/8.1.29 PleskLin
Resource Hash
2cc6b06a05cb6626103a0ae6900d8f50c652f87b5a8bd583205a5ef857dc4371
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains max-age=15768000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

Accept-Language
nl-NL,nl;q=0.9;q=0.9
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36

Response headers

cache-control
no-store
content-encoding
br
content-type
text/html; charset=utf-8
date
Thu, 13 Jun 2024 16:24:09 GMT
feature-policy
geolocation 'self'; vibrate 'none'
referrer-policy
same-origin
server
nginx
strict-transport-security
max-age=63072000; includeSubDomains max-age=15768000; includeSubDomains
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-powered-by
PHP/8.1.29 PleskLin
x-xss-protection
1; mode=block

Redirect headers

content-length
0
content-type
text/html; charset=UTF-8
date
Thu, 13 Jun 2024 16:24:09 GMT
feature-policy
geolocation 'self'; vibrate 'none'
location
https://textbooks.open.tudelft.nl/textbooks
referrer-policy
same-origin
server
nginx
strict-transport-security
max-age=63072000; includeSubDomains max-age=15768000; includeSubDomains
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-powered-by
PHP/8.1.29 PleskLin
x-xss-protection
1; mode=block
css
textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/ 		58 KB
9 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/css?name=stylesheet
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PHP/8.1.29, PleskLin
Resource Hash
ba4c60b00499d1afe1890ffccbc00029aedb820e9aa7d3085858fe40425ebd83
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
x-content-type-options
nosniff
referrer-policy
same-origin
last-modified
Mon, 27 Nov 2023 16:04:58 GMT
server
nginx
content-encoding
br
x-powered-by
PHP/8.1.29, PleskLin
x-frame-options
SAMEORIGIN
content-type
text/css;charset=UTF-8
feature-policy
geolocation 'self'; vibrate 'none'
x-xss-protection
1; mode=block
css
textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/ 		5 KB
727 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/css?name=font
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PHP/8.1.29, PleskLin
Resource Hash
f5267bd671dc5ad2ee1cbd16c73dce699bd37651898fe554d5280d13329318a7
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
x-content-type-options
nosniff
referrer-policy
same-origin
last-modified
Mon, 27 Nov 2023 16:04:58 GMT
server
nginx
content-encoding
br
x-powered-by
PHP/8.1.29, PleskLin
x-frame-options
SAMEORIGIN
content-type
text/css;charset=UTF-8
feature-policy
geolocation 'self'; vibrate 'none'
x-xss-protection
1; mode=block
fontawesome.css
textbooks.open.tudelft.nl/lib/pkp/styles/fontawesome/ 		36 KB
7 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/lib/pkp/styles/fontawesome/fontawesome.css?v=3.3.0.14
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
7e7c4c2ba5ac116e1cdb99a970fa2c013e8b211653d804386b21b8b7a22c3c44
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
content-encoding
br
last-modified
Mon, 27 Nov 2023 15:53:41 GMT
server
nginx
etag
W/"6564bb85-91f0"
x-powered-by
PleskLin
content-type
text/css
css
textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/ 		12 KB
2 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/css?name=plssssssssssssssssssss-stylesheet
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PHP/8.1.29, PleskLin
Resource Hash
1084668dc55e837b6bca466f16e11336aae98955d547789142d0fa17008891a1
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
x-content-type-options
nosniff
referrer-policy
same-origin
last-modified
Mon, 27 Nov 2023 16:04:58 GMT
server
nginx
content-encoding
br
x-powered-by
PHP/8.1.29, PleskLin
x-frame-options
SAMEORIGIN
content-type
text/css;charset=UTF-8
feature-policy
geolocation 'self'; vibrate 'none'
x-xss-protection
1; mode=block
styleSheet.css
textbooks.open.tudelft.nl/public/presses/4/ 		1 KB
538 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/public/presses/4/styleSheet.css?d=2024-06-05+10%3A25%3A20
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
8ec5c483ac675eab33b0f6bcd905df2ba998b265e280dfe8fad0d4ec4afd3447
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
content-encoding
br
last-modified
Wed, 05 Jun 2024 10:25:20 GMT
server
nginx
etag
W/"66603d10-4fe"
x-powered-by
PleskLin
content-type
text/css
styleSheet.css
textbooks.open.tudelft.nl/public/presses/4/ 		1 KB
538 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/public/presses/4/styleSheet.css?v=3.3.0.14
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
8ec5c483ac675eab33b0f6bcd905df2ba998b265e280dfe8fad0d4ec4afd3447
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
content-encoding
br
last-modified
Wed, 05 Jun 2024 10:25:20 GMT
server
nginx
etag
W/"66603d10-4fe"
x-powered-by
PleskLin
content-type
text/css
pageHeaderLogoImage_en_US.png
textbooks.open.tudelft.nl/public/presses/4/ 		4 KB
4 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://textbooks.open.tudelft.nl/public/presses/4/pageHeaderLogoImage_en_US.png
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
98f044097f846b47082bf2ecb17f153bd6f54011ea75046f393cf1cef4950bc3
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Mon, 27 Nov 2023 15:53:47 GMT
server
nginx
etag
"6564bb8b-ebd"
x-powered-by
PleskLin
content-type
image/png
accept-ranges
bytes
content-length
3773
homepageImage_en_US.jpg
textbooks.open.tudelft.nl/public/presses/4/ 		72 KB
72 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://textbooks.open.tudelft.nl/public/presses/4/homepageImage_en_US.jpg
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
fb6cc336e1559ce3379360390bb57c2de0ec477a03d8ef74f4190f187658f31a
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Mon, 27 Nov 2023 15:53:47 GMT
server
nginx
etag
"6564bb8b-11fd3"
x-powered-by
PleskLin
content-type
image/jpeg
accept-ranges
bytes
content-length
73683
button-textbooks-200x42.png
textbooks.open.tudelft.nl/public/site/images/editor/ 		4 KB
5 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://textbooks.open.tudelft.nl/public/site/images/editor/button-textbooks-200x42.png
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
cd34ec37c31530ef513a45e762e0f10442c6c955ff42945d2fc5c0940778c578
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
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last-modified
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server
nginx
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sec-ch-ua
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sec-ch-ua-platform
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Response headers

date
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content-encoding
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https://cdnjs.cloudflare.com/ajax/libs/tiny-slider/2.9.4/min/tiny-slider.js
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
content-encoding
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sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
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server
nginx
etag
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Request headers

sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
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nginx
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Host: textbooks.open.tudelft.nl
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sec-ch-ua
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sec-ch-ua-mobile
?0
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
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server
nginx
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Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
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131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
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Request headers

sec-ch-ua
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Accept-Language
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sec-ch-ua-mobile
?0
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Fri, 12 Apr 2024 08:00:27 GMT
server
nginx
etag
"6618ea1b-32eda"
x-powered-by
PleskLin
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Host: textbooks.open.tudelft.nl
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H2
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131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
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Request headers

sec-ch-ua
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Mon, 15 Apr 2024 07:50:09 GMT
server
nginx
etag
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PleskLin
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49 KB 		Image
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Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
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TLS 1.3, , AES_128_GCM
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131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
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nginx / PleskLin
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Request headers

sec-ch-ua
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sec-ch-ua-mobile
?0
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Tue, 19 Mar 2024 06:34:18 GMT
server
nginx
etag
"65f931ea-c3e6"
x-powered-by
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content-type
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content-length
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148 KB 		Image
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Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
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131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
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Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
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sec-ch-ua-mobile
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sec-ch-ua-platform
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Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Mon, 18 Mar 2024 13:40:44 GMT
server
nginx
etag
"65f8445c-24ca3"
x-powered-by
PleskLin
content-type
image/png
accept-ranges
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content-length
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15 KB 		Image
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Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
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131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
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Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
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https://textbooks.open.tudelft.nl/textbooks
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sec-ch-ua-mobile
?0
User-Agent
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sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Thu, 29 Feb 2024 09:43:46 GMT
server
nginx
etag
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x-powered-by
PleskLin
content-type
image/jpeg
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content-length
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16 KB 		Image
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https://textbooks.open.tudelft.nl/public/presses/4/submission_89_106_coverImage_en_US_t.jpg
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
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Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
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nginx / PleskLin
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Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
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sec-ch-ua-mobile
?0
User-Agent
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sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Thu, 29 Feb 2024 10:34:56 GMT
server
nginx
etag
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strict-transport-security
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?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Mon, 27 Nov 2023 15:53:41 GMT
server
nginx
etag
"6564bb85-25e10"
x-powered-by
PleskLin
content-type
font/woff2
accept-ranges
bytes
content-length
155152
fontawesome-webfont.woff2
textbooks.open.tudelft.nl/lib/pkp/styles/fontawesome/ 		75 KB
76 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/lib/pkp/styles/fontawesome/fontawesome-webfont.woff2?v=4.7.0
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/lib/pkp/styles/fontawesome/fontawesome.css?v=3.3.0.14
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
2adefcbc041e7d18fcf2d417879dc5a09997aa64d675b7a3c4b6ce33da13f3fe
Security Headers
Name Value
Strict-Transport-Security max-age=15768000; includeSubDomains

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/lib/pkp/styles/fontawesome/fontawesome.css?v=3.3.0.14
Origin
https://textbooks.open.tudelft.nl
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=15768000; includeSubDomains
last-modified
Mon, 27 Nov 2023 15:53:41 GMT
server
nginx
etag
"6564bb85-12d68"
x-powered-by
PleskLin
content-type
font/woff2
accept-ranges
bytes
content-length
77160
torch.svg
www.tudelft.nl/typo3conf/ext/tud_styling/Resources/Public/img/ 		2 KB
1 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://www.tudelft.nl/typo3conf/ext/tud_styling/Resources/Public/img/torch.svg
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks/$$$call$$$/page/page/css?name=plssssssssssssssssssss-stylesheet
Protocol
H2
Security
TLS 1.3, , AES_256_GCM
Server
2a01:4f8:c01e:7fd::1 , Germany, ASN24940 (HETZNER-AS, DE),
Reverse DNS
Software
/
Resource Hash
e7f03051c2d918d6c451dfa061cf5f7de8752f969896a5cb77b15c98eead0f99
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=31536000
referrer-policy
same-origin
x-content-type-options
nosniff
last-modified
Mon, 10 Jun 2024 08:58:59 GMT
content-encoding
br
x-cache-status
EXPIRED
vary
Accept-Encoding, Origin
x-frame-options
SAMEORIGIN
content-type
image/svg+xml
cache-control
max-age=604800, public
x-instance
tuds-typo3-php-application-7c855fdb5f-dwxgc
x-kvcr
v2.4e864f/tuds-p/fair-duck
js
www.googletagmanager.com/gtag/ 		274 KB
95 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.googletagmanager.com/gtag/js?id=G-T5X4XNTHVC
Requested by
Host: textbooks.open.tudelft.nl
URL: https://textbooks.open.tudelft.nl/textbooks
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:806::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
285541623ead0eb1a973153808ef0e511e5883c295d2c762832e6ce50e843088
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
server
Google Tag Manager
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
access-control-allow-headers
Cache-Control
content-length
96808
x-xss-protection
0
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires
Thu, 13 Jun 2024 16:24:09 GMT
js
www.googletagmanager.com/gtag/ 		274 KB
95 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.googletagmanager.com/gtag/js?id=G-T5X4XNTHVC&l=dataLayer&cx=c
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtm.js?id=GTM-W8DJ9BF
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:806::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Google Tag Manager /
Resource Hash
f168225cc7c777e46982d0084210ff372d6314abeaf5f964c3d632156eacc026
Security Headers
Name Value
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Xss-Protection 0

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
content-encoding
br
strict-transport-security
max-age=31536000; includeSubDomains
server
Google Tag Manager
vary
Accept-Encoding
content-type
application/javascript; charset=UTF-8
access-control-allow-origin
*
cache-control
private, max-age=900
access-control-allow-credentials
true
cross-origin-resource-policy
cross-origin
access-control-allow-headers
Cache-Control
content-length
96869
x-xss-protection
0
alt-svc
h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
expires
Thu, 13 Jun 2024 16:24:09 GMT
collect
region1.google-analytics.com/g/ 		0
252 B 		Ping
General
Check archive.org
Download Go to
Full URL
https://region1.google-analytics.com/g/collect?v=2&tid=G-T5X4XNTHVC&gtm=45je46c0v876990319za200zb856060570&_p=1718295849395&gcd=13l3l3l2l1&npa=1&dma_cps=sypham&dma=1&tag_exp=0&cid=1425412247.1718295850&ul=nl-nl&sr=1600x1200&uaa=x86&uab=64&uafvl=Not%252FA)Brand%3B8.0.0.0%7CChromium%3B126.0.6478.55%7CGoogle%2520Chrome%3B126.0.6478.55&uamb=0&uam=&uap=Win32&uapv=10.0.0&uaw=0&are=1&frm=0&pscdl=noapi&_s=1&sid=1718295849&sct=1&seg=0&dl=https%3A%2F%2Ftextbooks.open.tudelft.nl%2Ftextbooks&dt=TU%20Delft%20OPEN%20Textbooks&en=page_view&_fv=1&_nsi=1&_ss=1&_ee=1&tfd=773
Requested by
Host: www.googletagmanager.com
URL: https://www.googletagmanager.com/gtag/js?id=G-T5X4XNTHVC
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2001:4860:4802:34::36 , United States, ASN15169 (GOOGLE, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

pragma
no-cache
date
Thu, 13 Jun 2024 16:24:09 GMT
server
Golfe2
content-type
text/plain
access-control-allow-origin
https://textbooks.open.tudelft.nl
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
content-length
0
expires
Fri, 01 Jan 1990 00:00:00 GMT
favicon_en_US.png
textbooks.open.tudelft.nl/public/presses/4/ 		932 B
1 KB 		Other
General
Check archive.org
Download Go to
Full URL
https://textbooks.open.tudelft.nl/public/presses/4/favicon_en_US.png
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
131.180.77.108 Delft, Netherlands, ASN1128 (TUDELFT-NL DTO TUDELFT, The Netherlands - AS, NL),
Reverse DNS
*.weblog.tudelft.nl
Software
nginx / PleskLin
Resource Hash
38fbde02e332a4289cce92f40518e73c727ef4862f5f246ab8aae7fd727ba7b5
Security Headers
Name Value
Strict-Transport-Security max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 1; mode=block

Request headers

sec-ch-ua
"Google Chrome";v="126", "Not:A-Brand";v="8", "Chromium";v="126"
Referer
https://textbooks.open.tudelft.nl/textbooks
Accept-Language
nl-NL,nl;q=0.9;q=0.9
sec-ch-ua-mobile
?0
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
sec-ch-ua-platform
"Win32"

Response headers

date
Thu, 13 Jun 2024 16:24:09 GMT
strict-transport-security
max-age=63072000; includeSubDomains, max-age=15768000; includeSubDomains
x-content-type-options
nosniff
referrer-policy
same-origin
last-modified
Mon, 27 Nov 2023 15:53:47 GMT
server
nginx
x-accel-version
0.01
etag
"3a4-60b244eaef63c"
x-powered-by
PleskLin
x-frame-options
SAMEORIGIN
content-type
image/png
feature-policy
geolocation 'self'; vibrate 'none'
accept-ranges
bytes
content-length
932
x-xss-protection
1; mode=block

Verdicts & Comments Add Verdict or Comment

19 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.

undefined| event object| fence object| sharedStorage object| dataLayer function| tns object| slider number| tnsId function| $ function| jQuery function| Popper object| Util function| _typeof function| _createClass function| _classCallCheck function| Dropdown object| google_tag_manager object| google_tag_data function| onYouTubeIframeAPIReady object| gaGlobal

4 Cookies

Domain/Path Name / Value
.textbooks.open.tudelft.nl/ Name: OMPSID
Value: n63efb35n17nfuk7sl0k5npcfm
.tudelft.nl/ Name: _ga_T5X4XNTHVC
Value: GS1.1.1718295849.1.0.1718295849.0.0.0
.tudelft.nl/ Name: _ga
Value: GA1.1.1425412247.1718295850
www.tudelft.nl/ Name: aff_4b3147fdf
Value: 1718295850.701.52.342060|fb84324651ea0c062c285849185fc218

1 Console Messages

Source Level URL
Text
security warning
Message:
Error with Feature-Policy header: Unrecognized feature: 'vibrate'.

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=63072000; includeSubDomains max-age=15768000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
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.

cdnjs.cloudflare.com
region1.google-analytics.com
textbooks.open.tudelft.nl
www.googletagmanager.com
www.tudelft.nl
104.17.25.14
131.180.77.108
2001:4860:4802:34::36
2a00:1450:4001:806::2008
2a01:4f8:c01e:7fd::1
1084668dc55e837b6bca466f16e11336aae98955d547789142d0fa17008891a1
16bb3d8fb5c371c9e4fa6b5f313c0a5e2edd911c0ce6d0f9c3cee01e9560a2b3
1a46b251f497d3a96de79d4b5f0fcbc3ee82a5e1514b612ca10e7c04ea3bc4ad
1e6e2cdfc60070b13330dd436496f6b4a59747585bdff49e50ec475a0e0ba12b
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2af688d40101eabbd56a78cbc23bcf177654a0ad871f3523a2fae0f413142395
2cc6b06a05cb6626103a0ae6900d8f50c652f87b5a8bd583205a5ef857dc4371
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4dc7adc5453232809e58638f5ffd634bd0259bca8430ae7a71311ce4f14983c2
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7e7c4c2ba5ac116e1cdb99a970fa2c013e8b211653d804386b21b8b7a22c3c44
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ba4c60b00499d1afe1890ffccbc00029aedb820e9aa7d3085858fe40425ebd83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