urlscan.io logo urlscan.io
SecurityTrails logo

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

Go To Rescan Add Verdict Report
Submitted URL: https://algs4.cs.princeton.edu/
Effective URL: https://algs4.cs.princeton.edu/home/
Submission: On August 12 via api from US
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 6 IPs in 2 countries across 5 domains to perform 22 HTTP transactions. The main IP is 128.112.136.51, located in Hopewell, United States and belongs to PRINCETON-AS - Princeton University, US. The main domain is algs4.cs.princeton.edu.
TLS certificate: Issued by InCommon RSA Server CA on October 19th 2017. Valid for: 3 years.
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
2 7 128.112.136.51 88 (PRINCETON-AS)
1 2a00:1450:400... 15169 (GOOGLE)
2 2606:4700::68... 13335 (CLOUDFLAR...)
1 2a00:1450:400... 15169 (GOOGLE)
2 2a00:1450:400... 15169 (GOOGLE)
22 6
7    128.112.136.51 (Hopewell, United States)

ASN88 (PRINCETON-AS - Princeton University, US)
PTR: wwwprx1.CS.Princeton.EDU
algs4.cs.princeton.edu
1    2a00:1450:4001:821::200a (Frankfurt am Main, Germany)

ASN15169 (GOOGLE - Google LLC, US)
fonts.googleapis.com
2    2606:4700::6813:c697 (United States)

ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US)
cdnjs.cloudflare.com
1    2a00:1450:4001:81f::200e (Frankfurt am Main, Germany)

ASN15169 (GOOGLE - Google LLC, US)
www.google-analytics.com
2    2a00:1450:4001:81f::2008 (Frankfurt am Main, Germany)

ASN15169 (GOOGLE - Google LLC, US)
ssl.google-analytics.com
Domain Requested by
7 algs4.cs.princeton.edu 2 redirects algs4.cs.princeton.edu
2 ssl.google-analytics.com algs4.cs.princeton.edu
2 cdnjs.cloudflare.com algs4.cs.princeton.edu
cdnjs.cloudflare.com
1 www.google-analytics.com algs4.cs.princeton.edu
1 fonts.googleapis.com algs4.cs.princeton.edu
0 www.google.com Failed algs4.cs.princeton.edu
0 introcs.cs.princeton.edu Failed algs4.cs.princeton.edu
22 7

This site contains no links.

Subject Issuer Validity Valid
algs4.cs.princeton.edu
InCommon RSA Server CA		 2017-10-19 -
2020-10-18		 3 years crt.sh
*.googleapis.com
Google Internet Authority G3		 2019-07-29 -
2019-10-21		 3 months crt.sh
ssl412106.cloudflaressl.com
COMODO ECC Domain Validation Secure Server CA 2		 2019-08-10 -
2020-02-16		 6 months crt.sh
*.google-analytics.com
Google Internet Authority G3		 2019-07-29 -
2019-10-21		 3 months crt.sh

This page contains 1 frames:

Primary Page: https://algs4.cs.princeton.edu/home/
Frame ID: DC53E767649AC65342C26CDF72E6FD32
Requests: 22 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page URL History Show full URLs

  1. 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

Overall confidence: 100%
Detected patterns
  • headers server /php\/?([\d.]+)?/i
Overall confidence: 100%
Detected patterns
  • headers server /OpenSSL(?:\/([\d.]+[a-z]?))?/i
Overall confidence: 100%
Detected patterns
  • headers server /(?:Apache(?:$|\/([\d.]+)|[^\/-])|(?:^|\b)HTTPD)/i

Page Statistics

22
Requests

50 %
HTTPS

80 %
IPv6

5
Domains

7
Subdomains

6
IPs

2
Countries

159 kB
Transfer

451 kB
Size

0
Cookies

Page URL History

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

  1. https://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:

22 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
algs4.cs.princeton.edu/home/
Redirect Chain
  • https://algs4.cs.princeton.edu/
  • https://algs4.cs.princeton.edu/home
  • https://algs4.cs.princeton.edu/home/
14 KB
14 KB 		Document
General
Check archive.org
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
128.112.136.51 Hopewell, United States, ASN88 (PRINCETON-AS - Princeton University, US),
Reverse DNS
wwwprx1.CS.Princeton.EDU
Software
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50 / PHP/5.6.25
Resource Hash
7f66936a8274c2cad7b46df983d02693058aeb1b588b70f3640516b147a28938

Request headers

Host
algs4.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/74.0.3729.169 Safari/537.36
Sec-Fetch-Mode
navigate
Sec-Fetch-User
?1
Accept
text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
Sec-Fetch-Site
none
Accept-Encoding
gzip, deflate, br
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Sec-Fetch-Mode
navigate
Sec-Fetch-User
?1

Response headers

Date
Mon, 12 Aug 2019 15:51:10 GMT
Server
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50
X-Powered-By
PHP/5.6.25
Content-Type
text/html; charset=UTF-8
Keep-Alive
timeout=5, max=97
Connection
Keep-Alive
Transfer-Encoding
chunked

Redirect headers

Date
Mon, 12 Aug 2019 15:51:10 GMT
Server
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50
Location
https://algs4.cs.princeton.edu/home/
Content-Length
244
Content-Type
text/html; charset=iso-8859-1
Keep-Alive
timeout=5, max=98
Connection
Keep-Alive
css
fonts.googleapis.com/ 		1 KB
701 B 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://fonts.googleapis.com/css?family=Inconsolata
Requested by
Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:821::200a Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
ESF /
Resource Hash
6c0261ab3bfd08936c05c44c1fd9b4e802a1b98630a97abf7a03a6ea2b66c7f5
Security Headers
Name Value
Strict-Transport-Security max-age=31536000
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

strict-transport-security
max-age=31536000
content-encoding
br
last-modified
Mon, 12 Aug 2019 15:51:11 GMT
server
ESF
link
<https://fonts.gstatic.com>; rel=preconnect; crossorigin
status
200
date
Mon, 12 Aug 2019 15:51:11 GMT
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
access-control-allow-origin
*
cache-control
private, max-age=86400, stale-while-revalidate=604800
timing-allow-origin
*
alt-svc
quic=":443"; ma=2592000; v="46,43,39"
x-xss-protection
0
expires
Mon, 12 Aug 2019 15:51:11 GMT
algs4.css
algs4.cs.princeton.edu/css/ 		9 KB
10 KB 		Stylesheet
General
Check archive.org
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
128.112.136.51 Hopewell, United States, ASN88 (PRINCETON-AS - Princeton University, US),
Reverse DNS
wwwprx1.CS.Princeton.EDU
Software
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50 /
Resource Hash
b57370d5b4efa417b78ee8bb37c3668ae3eed6f2f4397b857cb370a0075e7e15

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

Date
Mon, 12 Aug 2019 15:51:14 GMT
Last-Modified
Thu, 09 Aug 2018 10:19:58 GMT
Server
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50
ETag
"24a7-572fdf818dce2"
Content-Type
text/css
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=100
Content-Length
9383
MathJax.js
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/ 		62 KB
18 KB 		Script
General
Check archive.org
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
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6813:c697 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
48344fd55558bbeb600062a175d052979f9ece87c7299788f8ecf16a46c87bf6
Security Headers
Name Value
Strict-Transport-Security max-age=15780000; includeSubDomains

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

date
Mon, 12 Aug 2019 15:51:11 GMT
content-encoding
br
vary
Accept-Encoding
cf-cache-status
HIT
age
1693842
status
200
served-in-seconds
0.003
timing-allow-origin
*
last-modified
Thu, 17 May 2018 09:22:39 GMT
server
cloudflare
etag
W/"5afd49df-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
*
cache-control
public, max-age=30672000
cf-ray
50539bf6ad659ab0-FRA
expires
Sat, 01 Aug 2020 15:51:11 GMT
swfobject.js
algs4.cs.princeton.edu/media/ 		7 KB
7 KB 		Script
General
Check archive.org
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
128.112.136.51 Hopewell, United States, ASN88 (PRINCETON-AS - Princeton University, US),
Reverse DNS
wwwprx1.CS.Princeton.EDU
Software
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50 /
Resource Hash
f2172868bc46d74ad32f2715bc25a8716e07a784b2ecb24d9d077d2125c6c993

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

Date
Mon, 12 Aug 2019 15:51:14 GMT
Last-Modified
Fri, 26 Aug 2016 11:06:52 GMT
Server
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50
ETag
"1ae0-53af782feb418"
Content-Type
application/javascript
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=99
Content-Length
6880
cover.png
algs4.cs.princeton.edu/ 		24 KB
0 		Image
General
Check archive.org
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
128.112.136.51 Hopewell, United States, ASN88 (PRINCETON-AS - Princeton University, US),
Reverse DNS
wwwprx1.CS.Princeton.EDU
Software
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50 /
Resource Hash

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

Date
Mon, 12 Aug 2019 15:51:14 GMT
Last-Modified
Fri, 26 Aug 2016 11:06:22 GMT
Server
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50
ETag
"970a-53af7812f0db1"
Content-Type
image/png
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=97
Content-Length
38666
cover.png
introcs.cs.princeton.edu/java/ 		0
0
cover-analysis-of-algorithms.png
algs4.cs.princeton.edu/ 		0
0
link-icons.css
algs4.cs.princeton.edu/css/ 		9 KB
9 KB 		Stylesheet
General
Check archive.org
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/home/
Protocol
HTTP/1.1
Security
TLS 1.2, ECDHE_RSA, AES_256_GCM
Server
128.112.136.51 Hopewell, United States, ASN88 (PRINCETON-AS - Princeton University, US),
Reverse DNS
wwwprx1.CS.Princeton.EDU
Software
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50 /
Resource Hash
87c892a67dae83478f1bfce9b6a0f8746cd7db36a5d296502318e438b4f22535

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

Date
Mon, 12 Aug 2019 15:51:14 GMT
Last-Modified
Thu, 27 Jun 2019 10:38:15 GMT
Server
Apache/2.4.34 (Springdale) OpenSSL/1.0.2k-fips mod_fcgid/2.3.9 PHP/5.6.25 Phusion_Passenger/4.0.50
ETag
"2223-58c4bc26884cf"
Content-Type
text/css
Connection
Keep-Alive
Accept-Ranges
bytes
Keep-Alive
timeout=5, max=98
Content-Length
8739
TeX-AMS-MML_HTMLorMML.js
cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/config/ 		238 KB
66 KB 		Script
General
Check archive.org
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
H2
Security
TLS 1.3, , AES_128_GCM
Server
2606:4700::6813:c697 , United States, ASN13335 (CLOUDFLARENET - Cloudflare, Inc., US),
Reverse DNS
Software
cloudflare /
Resource Hash
8df260b35bb9f49c0d937fcbf0ec13fb661b0d281528aec977aee6a8c3f83688
Security Headers
Name Value
Strict-Transport-Security max-age=15780000; includeSubDomains

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

date
Mon, 12 Aug 2019 15:51:14 GMT
content-encoding
br
vary
Accept-Encoding
cf-cache-status
HIT
age
10259012
status
200
served-in-seconds
0.051
timing-allow-origin
*
last-modified
Thu, 17 May 2018 09:22:39 GMT
server
cloudflare
etag
W/"5afd49df-3b80d"
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
*
cache-control
public, max-age=30672000
cf-ray
50539c0e3c93635f-FRA
expires
Sat, 01 Aug 2020 15:51:14 GMT
analytics.js
www.google-analytics.com/ 		43 KB
18 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://www.google-analytics.com/analytics.js
Requested by
Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:81f::200e Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 29 Jul 2019 21:35:27 GMT
server
Golfe2
age
1932
date
Mon, 12 Aug 2019 15:19:02 GMT
vary
Accept-Encoding
content-type
text/javascript
status
200
cache-control
public, max-age=7200
alt-svc
quic=":443"; ma=2592000; v="46,43,39"
content-length
17724
expires
Mon, 12 Aug 2019 17:19:02 GMT
cse.js
www.google.com/cse/ 		0
0
ga.js
ssl.google-analytics.com/ 		45 KB
17 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://ssl.google-analytics.com/ga.js
Requested by
Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:81f::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
1259ea99bd76596239bfd3102c679eb0a5052578dc526b0452f4d42f8bcdd45f
Security Headers
Name Value
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
X-Content-Type-Options nosniff

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36
Intervention
<https://www.chromestatus.com/feature/5718547946799104>; level="warning"

Response headers

strict-transport-security
max-age=10886400; includeSubDomains; preload
content-encoding
gzip
x-content-type-options
nosniff
last-modified
Mon, 29 Jul 2019 21:35:27 GMT
server
Golfe2
age
2059
date
Mon, 12 Aug 2019 15:16:55 GMT
vary
Accept-Encoding
content-type
text/javascript
status
200
cache-control
public, max-age=7200
alt-svc
quic=":443"; ma=2592000; v="46,43,39"
content-length
17168
expires
Mon, 12 Aug 2019 17:16:55 GMT
apple.png
algs4.cs.princeton.edu/css/icons/ 		0
0
windows.png
algs4.cs.princeton.edu/css/icons/ 		0
0
linux.png
algs4.cs.princeton.edu/css/icons/ 		0
0
coursera.png
algs4.cs.princeton.edu/css/icons/ 		0
0
pdf.png
algs4.cs.princeton.edu/css/icons/ 		0
0
pu-shield.png
algs4.cs.princeton.edu/css/icons/ 		0
0
email.png
algs4.cs.princeton.edu/css/icons/ 		0
0
__utm.gif
ssl.google-analytics.com/r/ 		35 B
269 B 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://ssl.google-analytics.com/r/__utm.gif?utmwv=5.7.2&utms=1&utmn=525061418&utmhn=algs4.cs.princeton.edu&utmcs=UTF-8&utmsr=1600x1200&utmvp=1600x1200&utmsc=24-bit&utmul=en-us&utmje=0&utmfl=-&utmdt=Algorithms%2C%204th%20Edition%20by%20Robert%20Sedgewick%20and%20Kevin%20Wayne&utmhid=895247677&utmr=-&utmp=%2Fhome%2F&utmht=1565625074914&utmac=UA-10811519-2&utmcc=__utma%3D170034928.360725597.1565625075.1565625075.1565625075.1%3B%2B__utmz%3D170034928.1565625075.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)%3B&utmjid=1054946604&utmredir=1&utmu=DAAAAAAAAAAAAAAAAAAAAAAE~
Requested by
Host: algs4.cs.princeton.edu
URL: https://algs4.cs.princeton.edu/home/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
2a00:1450:4001:81f::2008 Frankfurt am Main, Germany, ASN15169 (GOOGLE - Google LLC, US),
Reverse DNS
Software
Golfe2 /
Resource Hash
8337212354871836e6763a41e615916c89bac5b3f1f0adf60ba43c7c806e1015
Security Headers
Name Value
X-Content-Type-Options nosniff

Request headers

Sec-Fetch-Mode
no-cors
Referer
https://algs4.cs.princeton.edu/home/
User-Agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 Safari/537.36

Response headers

pragma
no-cache
date
Mon, 12 Aug 2019 15:51:14 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
quic=":443"; ma=2592000; v="46,43,39"
content-length
35
expires
Fri, 01 Jan 1990 00:00:00 GMT
collect
www.google-analytics.com/r/ 		0
0

Failed requests

These URLs were requested, but there was no response received. You will also see them in the list above.

Domain
introcs.cs.princeton.edu
URL
https://introcs.cs.princeton.edu/java/cover.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/cover-analysis-of-algorithms.png
Domain
www.google.com
URL
https://www.google.com/cse/cse.js?cx=005649317310637734940:s7fqljvxwfs
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/apple.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/windows.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/linux.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/coursera.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/pdf.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/pu-shield.png
Domain
algs4.cs.princeton.edu
URL
https://algs4.cs.princeton.edu/css/icons/email.png
Domain
www.google-analytics.com
URL
https://www.google-analytics.com/r/collect?v=1&_v=j78&a=895247677&t=pageview&_s=1&dl=https%3A%2F%2Falgs4.cs.princeton.edu%2Fhome%2F&ul=en-us&de=UTF-8&dt=Algorithms%2C%204th%20Edition%20by%20Robert%20Sedgewick%20and%20Kevin%20Wayne&sd=24-bit&sr=1600x1200&vp=1600x1200&je=0&_utma=170034928.360725597.1565625075.1565625075.1565625075.1&_utmz=170034928.1565625075.1.1.utmcsr%3D(direct)%7Cutmccn%3D(direct)%7Cutmcmd%3D(none)&_utmht=1565625074994&_u=IQBCAEAB~&jid=247090838&gjid=232938929&cid=360725597.1565625075&tid=UA-10811519-2&_gid=1400284155.1565625075&_r=1&z=452297027

Verdicts & Comments Add Verdict or Comment

3 JavaScript Global Variables

These are the non-standard "global" variables defined on the window object. These can be helpful in identifying possible client-side frameworks and code.

object| onselectstart object| onselectionchange function| queueMicrotask

0 Cookies