algs4.cs.princeton.edu Open in urlscan Pro
128.112.136.67 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
http://algs4.cs.princeton.edu/
Effective URL:
https://algs4.cs.princeton.edu/home/
Submission: On February 19 via api (February 19th 2024, 12:22:33 am UTC) from US — Scanned from DE

Summary HTTP 14 Redirects Links 15 Behaviour Indicators

Summary

This website contacted 2 IPs in 1 countries across 2 domains to perform 14 HTTP transactions. The main IP is 128.112.136.67, located in Princeton, United States and belongs to PRINCETON-AS, US. The main domain is algs4.cs.princeton.edu.
TLS certificate: Issued by R3 on December 22nd 2023. Valid for: 3 months.

This is the only time algs4.cs.princeton.edu was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
3 15	128.112.136.67 128.112.136.67	88 (PRINCETON-AS) (PRINCETON-AS)
2	2606:4700::68... 2606:4700::6811:190e	13335 (CLOUDFLAR...) (CLOUDFLARENET)
14	2

15 128.112.136.67 (Princeton, United States) 3 redirects

ASN88 (PRINCETON-AS, US)

algs4.cs.princeton.edu	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools
introcs.cs.princeton.edu	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2606:4700::6811:190e (United States)

ASN13335 (CLOUDFLARENET, US)

cdnjs.cloudflare.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
15	princeton.edu 3 redirects algs4.cs.princeton.edu introcs.cs.princeton.edu	407 KB
2	cloudflare.com cdnjs.cloudflare.com — Cisco Umbrella Rank: 257	76 KB
14	2

	Domain	Requested by
14	algs4.cs.princeton.edu	3 redirects algs4.cs.princeton.edu
2	cdnjs.cloudflare.com	algs4.cs.princeton.edu cdnjs.cloudflare.com
1	introcs.cs.princeton.edu	algs4.cs.princeton.edu
14	3

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

Domain
introcs.cs.princeton.edu
aofa.cs.princeton.edu
www.coursera.org
cuvids.io
amzn.to
www.pearson.com
informit.com
www.princeton.edu
www.cs.princeton.edu

Subject Issuer	Validity	Valid
algs4.cs.princeton.edu R3	`2023-12-22` - `2024-03-21`	3 months	crt.sh
sni.cloudflaressl.com Cloudflare Inc ECC CA-3	`2023-07-03` - `2024-07-02`	a year	crt.sh
introcs.cs.princeton.edu R3	`2023-12-22` - `2024-03-21`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://algs4.cs.princeton.edu/home/
Frame ID: 9A6C5BEB0AB7DC726188B2ADD8D0D5BC
Requests: 14 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page Title

Algorithms, 4th Edition by Robert Sedgewick and Kevin Wayne

Page URL History Show full URLs

http://algs4.cs.princeton.edu/ HTTP 302
https://algs4.cs.princeton.edu/ HTTP 302
https://algs4.cs.princeton.edu/home HTTP 301
https://algs4.cs.princeton.edu/home/ Page URL

Detected technologies

MathJax (JavaScript Graphics) Expand

Overall confidence: 100%
Detected patterns

([\d.]+)?/mathjax\.js

Google Font API (Font Scripts) Expand

Overall confidence: 100%
Detected patterns

<link[^>]* href=[^>]+fonts\.(?:googleapis|google)\.com

SWFObject (Miscellaneous) Expand

Overall confidence: 100%
Detected patterns

swfobject.*\.js

Page Statistics

14
Requests

100 %
HTTPS

50 %
IPv6

2
Domains

3
Subdomains

2
IPs

1
Countries

482 kB
Transfer

731 kB
Size

0
Cookies

15 Outgoing links

These are links going to different origins than the main page.

URL: https://introcs.cs.princeton.edu/

Search URL Search Domain Scan URL

URL: https://aofa.cs.princeton.edu/

Search URL Search Domain Scan URL

URL: https://introcs.cs.princeton.edu/java/data
Title: Data

Search URL Search Domain Scan URL

URL: https://www.coursera.org/learn/algorithms-part1/
Title: Online Course

Search URL Search Domain Scan URL

URL: https://introcs.cs.princeton.edu/java/assignments
Title: Programming Assignments

Search URL Search Domain Scan URL

URL: https://cuvids.io/app/course/2
Title: CUvids

Search URL Search Domain Scan URL

URL: http://amzn.to/13VNJi7
Title: Amazon

Search URL Search Domain Scan URL

URL: https://www.pearson.com/us/higher-education/program/Sedgewick-Algorithms-4th-Edition/PGM100869.html
Title: Pearson

Search URL Search Domain Scan URL

URL: http://informit.com/sedgewick
Title: InformIT

Search URL Search Domain Scan URL

URL: https://www.pearson.com/en-us/subject-catalog/p/algorithms/P200000000597?view=educator
Title: request an examination copy

Search URL Search Domain Scan URL

URL: http://www.princeton.edu/~cos226
Title: COS 226

Search URL Search Domain Scan URL

URL: https://www.coursera.org/learn/algorithms-part1
Title: Algorithms, Part I

Search URL Search Domain Scan URL

URL: https://www.coursera.org/learn/algorithms-part2
Title: Algorithms, Part II

Search URL Search Domain Scan URL

URL: https://www.cs.princeton.edu/~rs
Title: Robert Sedgewick

Search URL Search Domain Scan URL

URL: https://www.cs.princeton.edu/~wayne
Title: Kevin Wayne

Search URL Search Domain Scan URL

Page URL History

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

http://algs4.cs.princeton.edu/ HTTP 302
https://algs4.cs.princeton.edu/ HTTP 302
https://algs4.cs.princeton.edu/home HTTP 301
https://algs4.cs.princeton.edu/home/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

14 HTTP transactions
0 data transactions

Method
Protocol Status Resource
Path Size
x-fer Time
Latency Type
MIME-Type IP
Location

GET
H/1.1

200
OK

Primary Request / Show response
algs4.cs.princeton.edu/home/
Redirect Chain

http://algs4.cs.princeton.edu/
https://algs4.cs.princeton.edu/
https://algs4.cs.princeton.edu/home
https://algs4.cs.princeton.edu/home/

15 KB
5 KB

332ms
331ms

Document
text/html

128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://algs4.cs.princeton.edu/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache / PHP/8.1.14
Resource Hash: 5a70b9898eae09bf6b51f4b45692b0bbc17a854ad5c51dd0a66c03bf988e271b

Request headers

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36
accept-language: de-DE,de;q=0.9

Response headers

Connection: Keep-Alive
Content-Encoding: gzip
Content-Length: 5322
Content-Type: text/html; charset=UTF-8
Date: Mon, 19 Feb 2024 00:22:28 GMT
Keep-Alive: timeout=15, max=98
Server: Apache
Vary: Accept-Encoding
Via: 1.1 algs4.cs.princeton.edu
X-Powered-By: PHP/8.1.14

Redirect headers

Connection: Keep-Alive
Content-Length: 244
Content-Type: text/html; charset=iso-8859-1
Date: Mon, 19 Feb 2024 00:22:28 GMT
Keep-Alive: timeout=15, max=99
Location: https://algs4.cs.princeton.edu/home/
Server: Apache
Via: 1.1 algs4.cs.princeton.edu

GET
H/1.1 200
OK algs4.css
algs4.cs.princeton.edu/css/ 9 KB
3 KB 96ms
95ms Stylesheet
text/css 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://algs4.cs.princeton.edu/css/algs4.css
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: e805e315ba3033493389fc17e62e43fac47c6f8d208689f32f3b6adb4810eac7

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/home/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:28 GMT
Content-Encoding: gzip
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Tue, 27 Jun 2023 18:29:41 GMT
Server: Apache
ETag: "259c-5ff20a681d272-gzip"
Vary: Accept-Encoding
Content-Type: text/css
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=97
Content-Length: 2549

GET
H2 200 MathJax.js Show response
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/ 62 KB
17 KB 31ms
14ms Script
application/javascript 2606:4700::6811:190e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML

Requested by

Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

48344fd55558bbeb600062a175d052979f9ece87c7299788f8ecf16a46c87bf6

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

date: Mon, 19 Feb 2024 00:22:28 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}
strict-transport-security: max-age=15780000
age: 5774562
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 16870
last-modified: Tue, 01 Aug 2023 18:09:52 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "64c94a70-41e6"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=TX06e56N0w000LcIzxKsuRmwGQ3D28KW0LzhvENIXZjS851pbrPBWf042CWQTOpGCoDmEJ6pxi8l9F7tqmZSjt3bYJdVtr%2BylKsYPwpKYwMep9q%2Bm2hmN%2Bw9NyJEASo7iHhdlu1I9OcV0HeIDiYhEP%2Bn"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 857a5b0d880c1e4a-FRA
expires: Sat, 08 Feb 2025 00:22:28 GMT

GET
H/1.1 200
OK swfobject.js Show response
algs4.cs.princeton.edu/media/ 7 KB
3 KB 192ms
95ms Script
application/javascript 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://algs4.cs.princeton.edu/media/swfobject.js
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: f2172868bc46d74ad32f2715bc25a8716e07a784b2ecb24d9d077d2125c6c993

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/home/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:28 GMT
Content-Encoding: gzip
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Fri, 26 Aug 2016 11:06:52 GMT
Server: Apache
ETag: "1ae0-53af782feb418-gzip"
Vary: Accept-Encoding
Content-Type: application/javascript
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=96
Content-Length: 2248

GET
H/1.1 200
OK cover.png
algs4.cs.princeton.edu/ 38 KB
38 KB 296ms
101ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/cover.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: bc56dd37195a649fa67c81b09f564ad1fe564b312dcc489765c3eda7bc0556c0

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/home/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:28 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Fri, 26 Aug 2016 11:06:22 GMT
Server: Apache
ETag: "970a-53af7812f0db1"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=100
Content-Length: 38666

GET
H/1.1 200
OK cover.png
introcs.cs.princeton.edu/java/ 199 KB
199 KB 293ms
98ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://introcs.cs.princeton.edu/java/cover.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: 48a3d3d93cc465686cbd09659934c9282d8ea21e3adb56956e0bd3f2e0d90b6b

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 introcs.cs.princeton.edu
Last-Modified: Mon, 29 Jan 2018 15:55:11 GMT
Server: Apache
ETag: "31b83-563ec45633918"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=100
Content-Length: 203651

GET
H/1.1 200
OK cover-analysis-of-algorithms.png
algs4.cs.princeton.edu/ 65 KB
65 KB 96ms
95ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/cover-analysis-of-algorithms.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: 4e91666a1be232eb7cfcfbb5b2425643c742fc8a2b5703161278a20899c4b1e6

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/home/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Fri, 26 Aug 2016 11:06:52 GMT
Server: Apache
ETag: "104ac-53af782ff0be8"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=94
Content-Length: 66732

GET
H/1.1 200
OK link-icons.css
algs4.cs.princeton.edu/css/ 10 KB
1 KB 190ms
95ms Stylesheet
text/css 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://algs4.cs.princeton.edu/css/link-icons.css
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/css/algs4.css
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: 5d97e5bbef7542383cf45047b61571f08ec6ad2d6e866b591bcb2609a990e534

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/css/algs4.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:28 GMT
Content-Encoding: gzip
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Mon, 18 Sep 2023 20:22:23 GMT
Server: Apache
ETag: "2663-605a7e66436cc-gzip"
Vary: Accept-Encoding
Content-Type: text/css
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=95
Content-Length: 1141

GET
H2 200 TeX-AMS-MML_HTMLorMML.js Show response
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/config/ 238 KB
59 KB 14ms
13ms Script
application/javascript 2606:4700::6811:190e
CLOUDFLARENET

General

Check archive.org

Show headers Download Go to

Full URL

https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/config/TeX-AMS-MML_HTMLorMML.js?V=2.7.1

Requested by

Host: cdnjs.cloudflare.com
URL: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6811:190e , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

8df260b35bb9f49c0d937fcbf0ec13fb661b0d281528aec977aee6a8c3f83688

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000
X-Content-Type-Options	nosniff

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

date: Mon, 19 Feb 2024 00:22:29 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}
strict-transport-security: max-age=15780000
age: 8439016
cross-origin-resource-policy: cross-origin
alt-svc: h3=":443"; ma=86400
content-length: 60091
last-modified: Tue, 01 Aug 2023 18:09:52 GMT
server: cloudflare
cf-cdnjs-via: cfworker/kv
etag: "64c94a70-eabb"
vary: Accept-Encoding
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=F8858ZPRdWBkjuwPRIgkPQWPL%2FluKX3EIeidkwK0tQ3%2FWpP1yicizxlblQYIJCLn%2BMeHAV%2BtR348SPw%2BXmoKWMj3wvi4EAY0ZycxscvH2bBgDwz5nl3mNZ1AG6ekXzDLWcEZuwZn1ux8B%2Bd1b0uMnjeH"}],"group":"cf-nel","max_age":604800}
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
cache-control: public, max-age=30672000
accept-ranges: bytes
timing-allow-origin: *
cf-ray: 857a5b0f48bc1e4a-FRA
expires: Sat, 08 Feb 2025 00:22:29 GMT

GET
H/1.1 200
OK cuvids.png
algs4.cs.princeton.edu/css/icons/ 46 KB
46 KB 115ms
113ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/css/icons/cuvids.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/css/link-icons.css
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: 7fe24a44be25a5d673f7d2ef67dda3d253e84c881ed3a7cf4e3c60b502966cc6

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/css/link-icons.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Thu, 23 Jan 2020 01:12:22 GMT
Server: Apache
ETag: "b7b5-59cc4554ed1e1"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=100
Content-Length: 47029

GET
H/1.1 200
OK email.png
algs4.cs.princeton.edu/css/icons/ 2 KB
2 KB 139ms
112ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/css/icons/email.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/css/link-icons.css
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: e1ef371240183d4a6a6d4dd121f17c3a49c65641e384dec8a766a3b6dbc42314

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/css/link-icons.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Thu, 21 Jun 2018 14:54:51 GMT
Server: Apache
ETag: "6ff-56f2818f999db"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=100
Content-Length: 1791

GET
H/1.1 200
OK pdf.png
algs4.cs.princeton.edu/css/icons/ 17 KB
18 KB 195ms
98ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/css/icons/pdf.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/css/link-icons.css
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: db68ca0654fcc8440e344c509e4b132eabfb607317dbd53195b37f9a2fa81245

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/css/link-icons.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Thu, 21 Jun 2018 14:54:52 GMT
Server: Apache
ETag: "452b-56f2818ff6b1d"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=99
Content-Length: 17707

GET
H/1.1 200
OK pu-shield.png
algs4.cs.princeton.edu/css/icons/ 16 KB
17 KB 249ms
109ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/css/icons/pu-shield.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/css/link-icons.css
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: 1555801a0ec7dff70c92a7ef10eaafc846414041dd9e26f86752fb0fac904a1e

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/css/link-icons.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Thu, 21 Jun 2018 14:54:52 GMT
Server: Apache
ETag: "40db-56f281908a6ef"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=99
Content-Length: 16603

GET
H/1.1 200
OK coursera.png
algs4.cs.princeton.edu/css/icons/ 8 KB
9 KB 192ms
99ms Image
image/png 128.112.136.67
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://algs4.cs.princeton.edu/css/icons/coursera.png
Requested by: Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/css/link-icons.css
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.67 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS
Software: Apache /
Resource Hash: d70b39723833e390a5cb4604e2d37f7dfaa780a248b5c86238d7835bebf46033

Request headers

accept-language: de-DE,de;q=0.9
Referer: https://algs4.cs.princeton.edu/css/link-icons.css
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/121.0.6167.184 Safari/537.36

Response headers

Date: Mon, 19 Feb 2024 00:22:29 GMT
Via: 1.1 algs4.cs.princeton.edu
Last-Modified: Thu, 21 Jun 2018 14:54:51 GMT
Server: Apache
ETag: "211d-56f2818f7c356"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=15, max=100
Content-Length: 8477

Verdicts & Comments Add Verdict or Comment

6 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.

0 Cookies

Cookies are little pieces of information stored in the browser of a user. Whenever a user visits the site again, he will also send his cookie values, thus allowing the website to re-identify him even if he changed locations. This is how permanent logins work.

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.

algs4.cs.princeton.edu
cdnjs.cloudflare.com
introcs.cs.princeton.edu
128.112.136.67
2606:4700::6811:190e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algs4.cs.princeton.edu Open in urlscan Pro 128.112.136.67 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page Title

Page URL History Show full URLs

Detected technologies

Page Statistics

14 Requests

100 %HTTPS

50 %IPv6

2 Domains

3 Subdomains

2 IPs

1 Countries

482 kBTransfer

731 kBSize

0 Cookies

15 Outgoing links

Page URL History

Redirected requests

14 HTTP transactions Everything HTML Script AJAX CSS Image Expand all 0 data transactions

Request headers

Response headers

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Verdicts & Comments Add Verdict or Comment

6 JavaScript Global Variables

0 Cookies

Indicators

algs4.cs.princeton.edu Open in urlscan Pro
128.112.136.67 Public Scan

Screenshot
Live screenshot

Full Image

14
Requests

100 %
HTTPS

50 %
IPv6

2
Domains

3
Subdomains

2
IPs

1
Countries

482 kB
Transfer

731 kB
Size

0
Cookies

14 HTTP transactions
0 data transactions