introcs.cs.princeton.edu Open in urlscan Pro
128.112.136.61 Public Scan

Go To Rescan
Add Verdict Report

Submitted URL:
http://introcs.cs.princeton.edu/
Effective URL:
https://introcs.cs.princeton.edu/java/home/
Submission: On August 22 via manual (August 22nd 2020, 4:00:52 pm UTC) from US

Summary HTTP 28 Redirects Links 13 Behaviour Indicators

Summary

This website contacted 7 IPs in 2 countries across 4 domains to perform 28 HTTP transactions. The main IP is 128.112.136.61, located in Princeton, United States and belongs to PRINCETON-AS, US. The main domain is introcs.cs.princeton.edu.
TLS certificate: Issued by Let's Encrypt Authority X3 on June 30th 2020. Valid for: 3 months.

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

urlscan.io Verdict: No classification

Domain & IP information

	IP Address	AS Autonomous System
3 17	128.112.136.61 128.112.136.61	88 (PRINCETON-AS) (PRINCETON-AS)
2	2606:4700::68... 2606:4700::6811:4f6b	13335 (CLOUDFLAR...) (CLOUDFLARENET)
2	2a00:1450:400... 2a00:1450:4001:802::200e	15169 (GOOGLE) (GOOGLE)
1 1	2a00:1450:400... 2a00:1450:4001:824::2004	15169 (GOOGLE) (GOOGLE)
2	2a00:1450:400... 2a00:1450:4001:825::200e	15169 (GOOGLE) (GOOGLE)
2	2a00:1450:400... 2a00:1450:4001:814::2008	15169 (GOOGLE) (GOOGLE)
5	2a00:1450:400... 2a00:1450:4001:809::2004	15169 (GOOGLE) (GOOGLE)
1	2a00:1450:400... 2a00:1450:4001:820::200e	15169 (GOOGLE) (GOOGLE)
28	7

17 128.112.136.61 (Princeton, United States) 3 redirects

ASN88 (PRINCETON-AS, US)
PTR: wwwprx2.cs.princeton.edu

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

2 2606:4700::6811:4f6b (United States)

ASN13335 (CLOUDFLARENET, US)

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

2 2a00:1450:4001:802::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:824::2004 (Frankfurt am Main, Germany) 1 redirects

ASN15169 (GOOGLE, US)

www.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:825::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

cse.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

2 2a00:1450:4001:814::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

ssl.google-analytics.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

5 2a00:1450:4001:809::2004 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

www.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

1 2a00:1450:4001:820::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE, US)

clients1.google.com	Domain lookup VirusTotal SecurityTrails crt.sh Censys Domaintools

	Apex Domain Subdomains	Transfer
17	princeton.edu 3 redirects introcs.cs.princeton.edu algs4.cs.princeton.edu	2 MB
9	google.com 1 redirects www.google.com cse.google.com clients1.google.com	166 KB
4	google-analytics.com www.google-analytics.com ssl.google-analytics.com	36 KB
2	cloudflare.com cdnjs.cloudflare.com	84 KB
28	4

	Domain	Requested by
9	introcs.cs.princeton.edu	3 redirects introcs.cs.princeton.edu
8	algs4.cs.princeton.edu	introcs.cs.princeton.edu algs4.cs.princeton.edu
6	www.google.com	1 redirects www.google.com introcs.cs.princeton.edu
2	ssl.google-analytics.com	introcs.cs.princeton.edu
2	cse.google.com	introcs.cs.princeton.edu www.google.com
2	www.google-analytics.com	introcs.cs.princeton.edu
2	cdnjs.cloudflare.com	introcs.cs.princeton.edu cdnjs.cloudflare.com
1	clients1.google.com	introcs.cs.princeton.edu
28	8

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

Domain
algs4.cs.princeton.edu
www.coursera.org
get.vitalsource.com
support.vitalsource.com
amzn.to
www.pearson.com
informit.com
www.pearsonhighered.com
www.princeton.edu
www.cs.princeton.edu

Subject Issuer	Validity	Valid
introcs.cs.princeton.edu Let's Encrypt Authority X3	`2020-06-30` - `2020-09-28`	3 months	crt.sh
cdnjs.cloudflare.com DigiCert ECC Secure Server CA	`2020-08-12` - `2022-08-17`	2 years	crt.sh
algs4.cs.princeton.edu Let's Encrypt Authority X3	`2020-06-30` - `2020-09-28`	3 months	crt.sh
*.google-analytics.com GTS CA 1O1	`2020-08-11` - `2020-11-03`	3 months	crt.sh
*.google.com GTS CA 1O1	`2020-08-11` - `2020-11-03`	3 months	crt.sh

This page contains 1 frames:

Primary Page: https://introcs.cs.princeton.edu/java/home/
Frame ID: 68557041A83156EF05BD5FC6AA5E455E
Requests: 28 HTTP requests in this frame

Screenshot
Live screenshot

Full Image

Page URL History Show full URLs

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

Detected technologies

PHP (Programming Languages) Expand

Overall confidence: 100%
Detected patterns

headers server /php\/?([\d.]+)?/i

MathJax (JavaScript Graphics) Expand

Overall confidence: 100%
Detected patterns

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

OpenSSL (Web Server Extensions) Expand

Overall confidence: 100%
Detected patterns

headers server /OpenSSL(?:\/([\d.]+[a-z]?))?/i

Apache (Web Servers) Expand

Overall confidence: 100%
Detected patterns

headers server /(?:Apache(?:$|\/([\d.]+)|[^/-])|(?:^|\b)HTTPD)/i

Google Analytics (Analytics) Expand

Overall confidence: 100%
Detected patterns

script /google-analytics\.com\/(?:ga|urchin|analytics)\.js/i

SWFObject (Miscellaneous) Expand

Overall confidence: 100%
Detected patterns

script /swfobject.*\.js/i

Page Statistics

28
Requests

100 %
HTTPS

88 %
IPv6

4
Domains

8
Subdomains

7
IPs

2
Countries

1956 kB
Transfer

2552 kB
Size

8
Cookies

13 Outgoing links

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

URL: https://algs4.cs.princeton.edu/
Title:

Search URL Search Domain Scan URL

URL: https://www.coursera.org/learn/cs-programming-java
Title: Online Course

Search URL Search Domain Scan URL

URL: https://get.vitalsource.com/vitalsource-helps
Title: freely available

Search URL Search Domain Scan URL

URL: https://support.vitalsource.com/hc/en-us/articles/360044512214-VitalSource-Helps-Participating-Institutions
Title: participating institutions

Search URL Search Domain Scan URL

URL: http://amzn.to/2BLKP69
Title: Amazon

Search URL Search Domain Scan URL

URL: https://www.pearson.com/us/higher-education/program/Sedgewick-Introduction-to-Programming-in-Java-An-Interdisciplinary-Approach-2nd-Edition/PGM334823.html
Title: Pearson

Search URL Search Domain Scan URL

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

Search URL Search Domain Scan URL

URL: http://amzn.to/25JdBjC
Title: Amazon

Search URL Search Domain Scan URL

URL: https://www.pearsonhighered.com/program/Sedgewick-Computer-Science-An-Interdisciplinary-Approach/PGM317047.html
Title: Pearson

Search URL Search Domain Scan URL

URL: http://www.princeton.edu/~cos126
Title: COS 126

Search URL Search Domain Scan URL

URL: https://www.coursera.org/learn/cs-algorithms-theory-machines
Title: Computer Science: Algorithms, Theory, and Machines

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://introcs.cs.princeton.edu/ HTTP 302
https://introcs.cs.princeton.edu/ HTTP 302
https://introcs.cs.princeton.edu/java/home HTTP 301
https://introcs.cs.princeton.edu/java/home/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

Request Chain 11

https://www.google.com/cse/cse.js?cx=005649317310637734940:_d158dlngnk HTTP 302
https://cse.google.com/cse/cse.js?cx=005649317310637734940:_d158dlngnk

28 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
introcs.cs.princeton.edu/java/home/
Redirect Chain

http://introcs.cs.princeton.edu/
https://introcs.cs.princeton.edu/
https://introcs.cs.princeton.edu/java/home
https://introcs.cs.princeton.edu/java/home/

21 KB
21 KB

204ms
203ms

Document
text/html

128.112.136.61
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 / PHP/5.6.25
Resource Hash: b21eb0c86f6dcd2675245279d51ceeb42ecf9120129300946e7c52b26f04a542

Request headers

Host: introcs.cs.princeton.edu
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9
Sec-Fetch-Site: none
Sec-Fetch-Mode: navigate
Sec-Fetch-User: ?1
Sec-Fetch-Dest: document
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:34 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
X-Powered-By: PHP/5.6.25
Content-Type: text/html; charset=UTF-8
Keep-Alive: timeout=5, max=98
Connection: Keep-Alive
Transfer-Encoding: chunked

Redirect headers

Date: Sat, 22 Aug 2020 16:00:34 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
Location: https://introcs.cs.princeton.edu/java/home/
Content-Length: 251
Content-Type: text/html; charset=iso-8859-1
Keep-Alive: timeout=5, max=99
Connection: Keep-Alive

GET
H/1.1 200
OK introcs.css
introcs.cs.princeton.edu/ 6 KB
6 KB 211ms
120ms Stylesheet
text/css 128.112.136.61
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://introcs.cs.princeton.edu/introcs.css
Requested by: Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 /
Resource Hash: 5a8845a59c8731c02f498af143d190a568777df54102a519e929b0cd8fabab20

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:34 GMT
Last-Modified: Fri, 21 Dec 2018 13:00:08 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
ETag: "178a-57d87d3a0c843"
Content-Type: text/css
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=97
Content-Length: 6026

GET
H2 200 MathJax.js Show response
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/ 62 KB
18 KB 19ms
19ms Script
application/javascript 2606:4700::6811:4f6b
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: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/

Protocol

Security

TLS 1.3, , AES_128_GCM

Server

2606:4700::6811:4f6b , United States, ASN13335 (CLOUDFLARENET, US),

Reverse DNS

Software

cloudflare /

Resource Hash

48344fd55558bbeb600062a175d052979f9ece87c7299788f8ecf16a46c87bf6

Security Headers

Name	Value
Strict-Transport-Security	max-age=15780000; includeSubDomains

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Sat, 22 Aug 2020 16:00:34 GMT
content-encoding: br
vary: Accept-Encoding
cf-cache-status: HIT
age: 3508804
status: 200
alt-svc: h3-27=":443"; ma=86400, h3-28=":443"; ma=86400, h3-29=":443"; ma=86400
cf-request-id: 04b87f87ec0000c2fe9414b200000001
timing-allow-origin: *
last-modified: Thu, 17 May 2018 09:23:44 GMT
server: cloudflare
etag: W/"5afd4a20-f648"
expect-ct: max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
strict-transport-security: max-age=15780000; includeSubDomains
content-type: application/javascript; charset=utf-8
access-control-allow-origin: *
expires: Thu, 12 Aug 2021 16:00:34 GMT
cache-control: public, max-age=30672000
cf-ray: 5c6dceb97bf4c2fe-FRA
served-in-seconds: 0.002

GET
H/1.1 200
OK swfobject.js Show response
algs4.cs.princeton.edu/media/ 7 KB
7 KB 462ms
116ms Script
application/javascript 128.112.136.61
PRINCETON-AS

General

Check archive.org

Show headers Download Go to

Full URL: https://algs4.cs.princeton.edu/media/swfobject.js
Requested by: Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 /
Resource Hash: f2172868bc46d74ad32f2715bc25a8716e07a784b2ecb24d9d077d2125c6c993

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:35 GMT
Last-Modified: Fri, 26 Aug 2016 11:06:52 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
ETag: "1ae0-53af782feb418"
Content-Type: application/javascript
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=99
Content-Length: 6880

GET
H/1.1 200
OK cover.png
introcs.cs.princeton.edu/java/ 199 KB
199 KB 123ms
122ms Image
image/png 128.112.136.61
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: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 /
Resource Hash: 48a3d3d93cc465686cbd09659934c9282d8ea21e3adb56956e0bd3f2e0d90b6b

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:35 GMT
Last-Modified: Mon, 29 Jan 2018 15:55:11 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
ETag: "31b83-563ec45633918"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=96
Content-Length: 203651

GET
H/1.1 200
OK cover-python.png
introcs.cs.princeton.edu/java/ 291 KB
292 KB 125ms
125ms Image
image/png 128.112.136.61
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://introcs.cs.princeton.edu/java/cover-python.png
Requested by: Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 /
Resource Hash: df87c8ee61da4b89f45364f86cb1c78d8723f1fe44f7f076205c395919513ede

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:35 GMT
Last-Modified: Thu, 26 Mar 2015 10:12:22 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
ETag: "48ce3-5122e4069ae2e"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=100
Content-Length: 298211

GET
H/1.1 200
OK cover.png
algs4.cs.princeton.edu/ 38 KB
38 KB 116ms
115ms Image
image/png 128.112.136.61
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: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 /
Resource Hash: bc56dd37195a649fa67c81b09f564ad1fe564b312dcc489765c3eda7bc0556c0

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:35 GMT
Last-Modified: Fri, 26 Aug 2016 11:06:22 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
ETag: "970a-53af7812f0db1"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=98
Content-Length: 38666

GET
H/1.1 200
OK cover-java2e.png
introcs.cs.princeton.edu/java/ 190 KB
190 KB 198ms
131ms Image
image/png 128.112.136.61
PRINCETON-AS

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://introcs.cs.princeton.edu/java/cover-java2e.png
Requested by: Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: HTTP/1.1
Security: TLS 1.2, ECDHE_RSA, AES_256_GCM
Server: 128.112.136.61 Princeton, United States, ASN88 (PRINCETON-AS, US),
Reverse DNS: wwwprx2.cs.princeton.edu
Software: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30 /
Resource Hash: c774007720841107125d937dd8299ccf84a2cd2a9b78f383318c6e8ab7aa1b25

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

Date: Sat, 22 Aug 2020 16:00:35 GMT
Last-Modified: Wed, 20 Mar 2019 15:37:52 GMT
Server: Apache/2.4.41 (Springdale Linux) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/5.0.30
ETag: "2f6be-58488679b40f6"
Content-Type: image/png
Connection: Keep-Alive
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=95
Content-Length: 194238

GET
H/1.1 200
OK cover-cs.png
introcs.cs.princeton.edu/java/ 812 KB
812 KB 328ms
123ms Image
image/png 128.112.136.61
PRINCETON-AS

General

Check archive.org

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Full URL: https://introcs.cs.princeton.edu/java/cover-cs.png
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Requested by

Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:814::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

Golfe2 /

Resource Hash

8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015

Security Headers

Name	Value
X-Content-Type-Options	nosniff

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

pragma: no-cache
date: Sat, 22 Aug 2020 16:00:35 GMT
x-content-type-options: nosniff
last-modified: Sun, 17 May 1998 03:00:00 GMT
server: Golfe2
status: 200
content-type: image/gif
access-control-allow-origin: *
cache-control: no-cache, no-store, must-revalidate
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 35
expires: Fri, 01 Jan 1990 00:00:00 GMT

GET
H/2+Q/46 200 cse_element__en.js Show response
www.google.com/cse/static/element/26b8d00a7c7a0812/ 260 KB
86 KB 6ms
6ms Script
text/javascript 2a00:1450:4001:809::2004
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google.com/cse/static/element/26b8d00a7c7a0812/cse_element__en.js?usqp=CAI%3D

Requested by

Host: www.google.com
URL: https://www.google.com/cse/cse.js?cx=005649317310637734940:_d158dlngnk

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:809::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

77a59cb277854c7e55d027b3cc11095a241d8107ff7be5b345403453a3d16be1

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Fri, 21 Aug 2020 05:15:11 GMT
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Mon, 06 Jul 2020 13:27:13 GMT
server: sffe
age: 125124
vary: Accept-Encoding
content-type: text/javascript
status: 200
cache-control: public, max-age=31536000
accept-ranges: bytes
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 88400
x-xss-protection: 0
expires: Sat, 21 Aug 2021 05:15:11 GMT

GET
H/2+Q/46 200 default+en.css
www.google.com/cse/static/element/26b8d00a7c7a0812/ 40 KB
9 KB 7ms
6ms Stylesheet
text/css 2a00:1450:4001:809::2004
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google.com/cse/static/element/26b8d00a7c7a0812/default+en.css

Requested by

Host: www.google.com
URL: https://www.google.com/cse/cse.js?cx=005649317310637734940:_d158dlngnk

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:809::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

8b2484fa9a9b136b9eb56c1d2b3bfdacd1c8970acf325585235aa35b16fc010a

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Fri, 21 Aug 2020 05:15:10 GMT
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Mon, 06 Jul 2020 13:27:13 GMT
server: sffe
age: 125125
vary: Accept-Encoding
content-type: text/css
status: 200
cache-control: public, max-age=31536000
accept-ranges: bytes
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 8947
x-xss-protection: 0
expires: Sat, 21 Aug 2021 05:15:10 GMT

GET
H/2+Q/46 200 default.css
www.google.com/cse/static/style/look/v4/ 4 KB
1 KB 7ms
7ms Stylesheet
text/css 2a00:1450:4001:809::2004
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://www.google.com/cse/static/style/look/v4/default.css

Requested by

Host: www.google.com
URL: https://www.google.com/cse/cse.js?cx=005649317310637734940:_d158dlngnk

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:809::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

dcec22bbcb68119d6c7d6d5e088fb82183a9826d0c9e3403f1386fd837f06a89

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Sat, 22 Aug 2020 15:53:17 GMT
content-encoding: gzip
x-content-type-options: nosniff
last-modified: Wed, 17 Jun 2020 00:00:00 GMT
server: sffe
age: 438
vary: Accept-Encoding
content-type: text/css
status: 200
cache-control: public, max-age=3000
accept-ranges: bytes
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 1345
x-xss-protection: 0
expires: Sat, 22 Aug 2020 16:43:17 GMT

GET
H/2+Q/46 200 async-ads.js Show response
cse.google.com/adsense/search/ 180 KB
63 KB 37ms
23ms Script
text/javascript 2a00:1450:4001:825::200e
GOOGLE

General

Check archive.org

Show headers Download Go to

Full URL

https://cse.google.com/adsense/search/async-ads.js

Requested by

Host: www.google.com
URL: https://www.google.com/cse/static/element/26b8d00a7c7a0812/cse_element__en.js?usqp=CAI%3D

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:825::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

a8a9b311780e6677d09f34f2236812ee1801aa20717c57834fac11c3c2a8d68c

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Sat, 22 Aug 2020 16:00:35 GMT
content-encoding: gzip
x-content-type-options: nosniff
server: sffe
etag: "9280815787102181938"
vary: Accept-Encoding
content-type: text/javascript; charset=UTF-8
status: 200
cache-control: private, max-age=3600
accept-ranges: bytes
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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"
x-xss-protection: 0
expires: Sat, 22 Aug 2020 16:00:35 GMT

GET
H/2+Q/46 200 clear.png
www.google.com/cse/static/css/v2/ 1018 B
1 KB 6ms
6ms Image
image/png 2a00:1450:4001:809::2004
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com/cse/static/css/v2/clear.png

Requested by

Host: www.google.com
URL: https://www.google.com/cse/static/element/26b8d00a7c7a0812/default+en.css

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:809::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

329d1a750114920332eadc55c129957d9dbe5a1b25745e2f7e0ed4fad75e04cd

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://www.google.com/cse/static/element/26b8d00a7c7a0812/default+en.css
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Tue, 11 Aug 2020 19:57:14 GMT
x-content-type-options: nosniff
last-modified: Mon, 25 May 2020 08:30:00 GMT
server: sffe
age: 936201
content-type: image/png
status: 200
cache-control: public, max-age=31536000
accept-ranges: bytes
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 1018
x-xss-protection: 0
expires: Wed, 11 Aug 2021 19:57:14 GMT

GET
H/2+Q/46 200 branding.png
www.google.com/cse/static/images/1x/en/ 1 KB
1 KB 6ms
6ms Image
image/png 2a00:1450:4001:809::2004
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL

https://www.google.com/cse/static/images/1x/en/branding.png

Requested by

Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/

Protocol

HTTP/2+QUIC/46

Security

QUIC, , AES_128_GCM

Server

2a00:1450:4001:809::2004 Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),

Reverse DNS

Software

sffe /

Resource Hash

331b2b1241f1f2a53744bdca867c5b76954d9431970e91f490f64c707fc24a16

Security Headers

Name	Value
X-Content-Type-Options	nosniff
X-Xss-Protection	0

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

date: Tue, 11 Aug 2020 13:34:16 GMT
x-content-type-options: nosniff
last-modified: Mon, 25 May 2020 08:30:00 GMT
server: sffe
age: 959179
content-type: image/png
status: 200
cache-control: public, max-age=31536000
accept-ranges: bytes
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 1372
x-xss-protection: 0
expires: Wed, 11 Aug 2021 13:34:16 GMT

GET
H2 204 generate_204
clients1.google.com/ 0
201 B 26ms
6ms Image
text/plain 2a00:1450:4001:820::200e
GOOGLE

General

Check archive.org

Show headers Download Go to Show image

Full URL: https://clients1.google.com/generate_204
Requested by: Host: introcs.cs.princeton.edu
URL: https://introcs.cs.princeton.edu/java/home/
Protocol: H2
Security: TLS 1.3, , AES_128_GCM
Server: 2a00:1450:4001:820::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE, US),
Reverse DNS
Software: /
Resource Hash: e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

Request headers

Referer: https://introcs.cs.princeton.edu/java/home/
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.61 Safari/537.36

Response headers

status: 204
date: Sat, 22 Aug 2020 16:00:35 GMT
alt-svc: h3-29=":443"; ma=2592000,h3-27=":443"; ma=2592000,h3-T050=":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: 0

Verdicts & Comments Add Verdict or Comment

32 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.

8 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.

Domain/Path	Expires	Name / Value
.introcs.cs.princeton.edu/	1970-01-19 11:55:13	Name: __utmb Value: 193361013.1.10.1598112035
.introcs.cs.princeton.edu/	1970-01-19 11:55:12	Name: __utmt Value: 1
.introcs.cs.princeton.edu/	1970-01-19 16:18:00	Name: __utmz Value: 193361013.1598112035.1.1.utmcsr=(direct)\|utmccn=(direct)\|utmcmd=(none)
.introcs.cs.princeton.edu/	1969-12-31 23:59:59	Name: __utmc Value: 193361013
.princeton.edu/	1970-01-19 11:55:12	Name: _gat Value: 1
.princeton.edu/	1970-01-19 11:56:38	Name: _gid Value: GA1.2.1939443433.1598112035
.introcs.cs.princeton.edu/	1970-01-20 05:26:24	Name: __utma Value: 193361013.1763803899.1598112035.1598112035.1598112035.1
.princeton.edu/	1970-01-20 05:26:24	Name: _ga Value: GA1.2.1763803899.1598112035

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
clients1.google.com
cse.google.com
introcs.cs.princeton.edu
ssl.google-analytics.com
www.google-analytics.com
www.google.com
128.112.136.61
2606:4700::6811:4f6b
2a00:1450:4001:802::200e
2a00:1450:4001:809::2004
2a00:1450:4001:814::2008
2a00:1450:4001:820::200e
2a00:1450:4001:824::2004
2a00:1450:4001:825::200e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introcs.cs.princeton.edu Open in urlscan Pro 128.112.136.61 Public Scan

Summary

urlscan.io Verdict: No classification

Domain & IP information

Screenshot Live screenshot Full Image

Page URL History Show full URLs

Detected technologies

Page Statistics

28 Requests

100 %HTTPS

88 %IPv6

4 Domains

8 Subdomains

7 IPs

2 Countries

1956 kBTransfer

2552 kBSize

8 Cookies

13 Outgoing links

Page URL History

Redirected requests

28 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

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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

Redirect headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

Request headers

Response headers

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Response headers

Request headers

Response headers

Request headers

Response headers

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Response headers

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Response headers

Request headers

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Request headers

Response headers

Request headers

Response headers

introcs.cs.princeton.edu Open in urlscan Pro
128.112.136.61 Public Scan

Screenshot
Live screenshot

Full Image

28
Requests

100 %
HTTPS

88 %
IPv6

4
Domains

8
Subdomains

7
IPs

2
Countries

1956 kB
Transfer

2552 kB
Size

8
Cookies

28 HTTP transactions
0 data transactions