urlscan.io logo urlscan.io
SecurityTrails logo

cs50.dev Open in urlscan Pro
3.233.211.126  Public Scan

Go To Rescan Add Verdict Report
Submitted URL: http://cs50.io/
Effective URL: https://cs50.dev/
Submission: On October 08 via manual from US — Scanned from DE
 Behaviour Indicators
Similar DOM Content API
Verdicts

Summary

This website contacted 2 IPs in 1 countries across 3 domains to perform 8 HTTP transactions. The main IP is 3.233.211.126, located in Ashburn, United States and belongs to AMAZON-AES, US. The main domain is cs50.dev. The Cisco Umbrella rank of the primary domain is 498923.
TLS certificate: Issued by Amazon RSA 2048 M01 on April 26th 2023. Valid for: a year.
This is the only time cs50.dev was scanned on urlscan.io!

urlscan.io Verdict: No classification

Domain & IP information

IP Address AS Autonomous System
2 2 75.2.60.5 16509 (AMAZON-02)
1 7 3.233.211.126 14618 (AMAZON-AES)
2 104.192.142.21 14618 (AMAZON-AES)
8 2
Apex Domain
Subdomains		 Transfer
6 cs50.dev
cs50.dev — Cisco Umbrella Rank: 498923
1 MB
3 cs50.io
cs50.io — Cisco Umbrella Rank: 390579
code.cs50.io
1 KB
2 statuspage.io
g9mp5m2251ps.statuspage.io — Cisco Umbrella Rank: 524864
5 KB
8 3
Domain Requested by
6 cs50.dev cs50.dev
2 g9mp5m2251ps.statuspage.io cs50.dev
g9mp5m2251ps.statuspage.io
2 cs50.io 2 redirects
1 code.cs50.io 1 redirects
8 4

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

Domain
github.com
cs50.readthedocs.io
docs.github.com
Subject Issuer Validity Valid
cs50.dev
Amazon RSA 2048 M01		 2023-04-26 -
2024-05-24		 a year crt.sh
*.statuspage.io
DigiCert Global G2 TLS RSA SHA256 2020 CA1		 2023-07-26 -
2024-08-23		 a year crt.sh

This page contains 2 frames:

Primary Page: https://cs50.dev/
Frame ID: 7832103D11CCCBF5EFC53920385B456D
Requests: 7 HTTP requests in this frame

Frame: https://g9mp5m2251ps.statuspage.io/embed/frame
Frame ID: CFD91372921ACD575084E86C792D223A
Requests: 1 HTTP requests in this frame

Screenshot
Live screenshot
Full Image

Page Title

Visual Studio Code for CS50

Page URL History Show full URLs

  1. http://cs50.io/ HTTP 301
    https://cs50.io/ HTTP 301
    https://code.cs50.io/ HTTP 302
    https://cs50.dev/ Page URL

Page Statistics

8
Requests

100 %
HTTPS

0 %
IPv6

3
Domains

4
Subdomains

2
IPs

1
Countries

1076 kB
Transfer

3356 kB
Size

5
Cookies

Page URL History

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

  1. http://cs50.io/ HTTP 301
    https://cs50.io/ HTTP 301
    https://code.cs50.io/ HTTP 302
    https://cs50.dev/ Page URL

Redirected requests

There were HTTP redirect chains for the following requests:

8 HTTP transactions

Resource
Path		 Size
x-fer		 Type
MIME-Type
Primary Request /
cs50.dev/
Redirect Chain
  • http://cs50.io/
  • https://cs50.io/
  • https://code.cs50.io/
  • https://cs50.dev/
14 KB
5 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://cs50.dev/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.233.211.126 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-233-211-126.compute-1.amazonaws.com
Software
nginx /
Resource Hash
af3f4f48060d11e84d6c75bc0701647dd0ccf5ece8aba0ad9e98b5aaed81c47a
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

cache-control
no-cache, no-store, must-revalidate
content-encoding
gzip
content-security-policy
frame-ancestors 'self'
content-type
text/html; charset=utf-8
date
Sun, 08 Oct 2023 21:56:51 GMT
expires
0
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
pragma
no-cache
referrer-policy
strict-origin
server
nginx
status
200 OK
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-xss-protection
0

Redirect headers

cache-control
no-cache, no-store, must-revalidate
content-length
145
content-security-policy
frame-ancestors 'self'
content-type
text/html
date
Sun, 08 Oct 2023 21:56:51 GMT
expires
0
location
https://cs50.dev/
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
pragma
no-cache
referrer-policy
strict-origin
server
nginx
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
x-frame-options
SAMEORIGIN
x-xss-protection
0
main.css
cs50.dev/static/dist/ 		321 KB
61 KB 		Stylesheet
General
Check archive.org
Download Go to
Full URL
https://cs50.dev/static/dist/main.css?1696755999
Requested by
Host: cs50.dev
URL: https://cs50.dev/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.233.211.126 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-233-211-126.compute-1.amazonaws.com
Software
nginx /
Resource Hash
63d51e7b0170e0e7d7758c841d6e6322f665768839515d0f4660dad50f4d6e5c
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://cs50.dev/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date
Sun, 08 Oct 2023 21:56:51 GMT
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
last-modified
Sun, 08 Oct 2023 09:06:27 GMT
server
nginx
content-encoding
gzip
referrer-policy
strict-origin
etag
W/"1696755987.0-329189-2730363634"
x-frame-options
SAMEORIGIN
content-type
text/css; charset=utf-8
status
200 OK
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
content-disposition
inline; filename=main.css
x-xss-protection
0
main.js
cs50.dev/static/dist/ 		3 MB
812 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://cs50.dev/static/dist/main.js?1696755999
Requested by
Host: cs50.dev
URL: https://cs50.dev/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.233.211.126 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-233-211-126.compute-1.amazonaws.com
Software
nginx /
Resource Hash
53a68c4ce304ae0dc2086f00670d82a8c31fb58045a7f29e36520fa82809f5e6
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://cs50.dev/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date
Sun, 08 Oct 2023 21:56:51 GMT
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
content-encoding
gzip
status
200 OK
content-disposition
inline; filename=main.js
x-xss-protection
0
pragma
no-cache
referrer-policy
strict-origin
last-modified
Sun, 08 Oct 2023 09:06:27 GMT
server
nginx
etag
W/"1696755987.0-2884326-2547649158"
x-frame-options
SAMEORIGIN
content-type
text/javascript; charset=utf-8
cache-control
no-cache, no-store, must-revalidate
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
expires
0
ddb50.gif
cs50.dev/static/ 		76 KB
77 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://cs50.dev/static/ddb50.gif
Requested by
Host: cs50.dev
URL: https://cs50.dev/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.233.211.126 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-233-211-126.compute-1.amazonaws.com
Software
nginx /
Resource Hash
959835bb120a8d2708d1f4ec849b2bbbfe4526612b9213658a2a3007cf40ed38
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://cs50.dev/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date
Sun, 08 Oct 2023 21:56:52 GMT
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
status
200 OK
content-disposition
inline; filename=ddb50.gif
content-length
77854
x-xss-protection
0
pragma
no-cache
referrer-policy
strict-origin
last-modified
Wed, 20 Sep 2023 20:20:19 GMT
server
nginx
etag
"1695241219.0-77854-1989282022"
x-frame-options
SAMEORIGIN
content-type
image/gif
cache-control
no-cache, no-store, must-revalidate
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
expires
0
dependencies-3.png
cs50.dev/static/ 		9 KB
10 KB 		Image
General
Check archive.org
Download Go to Show image
Full URL
https://cs50.dev/static/dependencies-3.png
Requested by
Host: cs50.dev
URL: https://cs50.dev/
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.233.211.126 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-233-211-126.compute-1.amazonaws.com
Software
nginx /
Resource Hash
11634700b209de61fc27810d83320f2f0cbe8068769ca6ea1aeafe935dd53b4a
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://cs50.dev/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date
Sun, 08 Oct 2023 21:56:52 GMT
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
status
200 OK
content-disposition
inline; filename=dependencies-3.png
content-length
9290
x-xss-protection
0
pragma
no-cache
referrer-policy
strict-origin
last-modified
Wed, 20 Sep 2023 20:20:19 GMT
server
nginx
etag
"1695241219.0-9290-3756133549"
x-frame-options
SAMEORIGIN
content-type
image/png
cache-control
no-cache, no-store, must-revalidate
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
expires
0
script.js
g9mp5m2251ps.statuspage.io/embed/ 		2 KB
1 KB 		Script
General
Check archive.org
Download Go to
Full URL
https://g9mp5m2251ps.statuspage.io/embed/script.js
Requested by
Host: cs50.dev
URL: https://cs50.dev/
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.192.142.21 , United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
Software
AtlassianEdge /
Resource Hash
226f608620624d166d466825d2302985771bf4cd7ec8adc25d3c0202d477eef5
Security Headers
Name Value
Strict-Transport-Security max-age=259200
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

accept-language
de-DE,de;q=0.9
Referer
https://cs50.dev/
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date
Sun, 08 Oct 2023 21:56:52 GMT
strict-transport-security
max-age=259200
x-content-type-options
nosniff
nel
{"failure_fraction": 0.001, "include_subdomains": true, "max_age": 600, "report_to": "endpoint-1"}
x-permitted-cross-domain-policies
none
atl-traceid
972de17c67bb02d2
content-encoding
gzip
x-statuspage-skip-logging
true
x-cache
MISS
x-statuspage-version
34c2f349dd3af7cad6b8ffbcf3ca60de2318bc6e
x-xss-protection
1; mode=block
x-runtime
0.046869
referrer-policy
strict-origin-when-cross-origin
server
AtlassianEdge
etag
W/"226f608620624d166d466825d2302985"
x-download-options
noopen
vary
Accept,Accept-Encoding,X-Forwarded-Host,X-Forwarded-Scheme,X-Forwarded-Proto,Fastly-SSL
report-to
{"endpoints": [{"url": "https://dz8aopenkvv6s.cloudfront.net"}], "group": "endpoint-1", "include_subdomains": true, "max_age": 600}
content-type
text/javascript; charset=utf-8
access-control-allow-origin
*
cache-control
max-age=3, public
x-edge-cache-ttl
3
accept-ranges
bytes
x-pollinator-metadata-service
status-page-web-pages
fa-brands-400.91a08dbe.woff2
cs50.dev/static/dist/ 		105 KB
106 KB 		Font
General
Check archive.org
Download Go to
Full URL
https://cs50.dev/static/dist/fa-brands-400.91a08dbe.woff2
Requested by
Host: cs50.dev
URL: https://cs50.dev/static/dist/main.css?1696755999
Protocol
H2
Security
TLS 1.2, ECDHE_RSA, AES_128_GCM
Server
3.233.211.126 Ashburn, United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
ec2-3-233-211-126.compute-1.amazonaws.com
Software
nginx /
Resource Hash
748332090c4b8e20f95d0ff59f0be20fa9c889359d3b36d4b886d73376054207
Security Headers
Name Value
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0

Request headers

Referer
https://cs50.dev/
Origin
https://cs50.dev
accept-language
de-DE,de;q=0.9
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36

Response headers

date
Sun, 08 Oct 2023 21:56:52 GMT
strict-transport-security
max-age=31536000; includeSubDomains
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self'
last-modified
Sun, 08 Oct 2023 09:06:24 GMT
server
nginx
referrer-policy
strict-origin
etag
"1696755984.0-108020-2988708003"
x-frame-options
SAMEORIGIN
content-type
font/woff2
status
200 OK
permissions-policy
camera=(self), geolocation=(self), microphone=(self)
content-disposition
inline; filename=fa-brands-400.91a08dbe.woff2
content-length
108020
x-xss-protection
0
frame
g9mp5m2251ps.statuspage.io/embed/ Frame CFD9 		12 KB
4 KB 		Document
General
Check archive.org
Download Go to
Full URL
https://g9mp5m2251ps.statuspage.io/embed/frame
Requested by
Host: g9mp5m2251ps.statuspage.io
URL: https://g9mp5m2251ps.statuspage.io/embed/script.js
Protocol
H2
Security
TLS 1.3, , AES_128_GCM
Server
104.192.142.21 , United States, ASN14618 (AMAZON-AES, US),
Reverse DNS
Software
AtlassianEdge /
Resource Hash
b51b4c79da055f6911ebebb83c5c972ada82c3351afd16ded70437fc88ddee66
Security Headers
Name Value
Strict-Transport-Security max-age=259200
X-Content-Type-Options nosniff
X-Xss-Protection 1; mode=block

Request headers

Referer
https://cs50.dev/
Upgrade-Insecure-Requests
1
User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.5938.149 Safari/537.36
accept-language
de-DE,de;q=0.9

Response headers

accept-ranges
bytes
access-control-allow-origin
*
atl-traceid
acd43f2a0f130583
cache-control
max-age=3, public
content-encoding
gzip
content-type
text/html; charset=utf-8
date
Sun, 08 Oct 2023 21:56:52 GMT
etag
W/"b51b4c79da055f6911ebebb83c5c972a"
nel
{"failure_fraction": 0.001, "include_subdomains": true, "max_age": 600, "report_to": "endpoint-1"}
referrer-policy
strict-origin-when-cross-origin
report-to
{"endpoints": [{"url": "https://dz8aopenkvv6s.cloudfront.net"}], "group": "endpoint-1", "include_subdomains": true, "max_age": 600}
server
AtlassianEdge
strict-transport-security
max-age=259200
vary
Accept,Accept-Encoding,X-Forwarded-Host,X-Forwarded-Scheme,X-Forwarded-Proto,Fastly-SSL
x-cache
HIT
x-content-type-options
nosniff
x-download-options
noopen
x-edge-cache-ttl
3
x-permitted-cross-domain-policies
none
x-pollinator-metadata-service
status-page-web-pages
x-runtime
0.159276
x-statuspage-skip-logging
true
x-statuspage-version
34c2f349dd3af7cad6b8ffbcf3ca60de2318bc6e
x-xss-protection
1; mode=block

Verdicts & Comments Add Verdict or Comment

18 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| 0 object| FontAwesomeConfig function| parcelRequire94c2 object| ___FONT_AWESOME___ object| FontAwesome number| uidEvent object| __core-js_shared__ object| core function| setImmediate function| clearImmediate object| regeneratorRuntime boolean| _babelPolyfill object| bootstrap function| bowser function| moment function| $ function| jQuery function| statusEmbedTest

5 Cookies

Domain/Path Name / Value
code.cs50.io/ Name: AWSALB
Value: 4OE/AanOOWjOMS7RPvc8afCL8PK5mpWXU6fveq1+u/1iX+EX/ksNjWWaqKgPLW15UEbvQ6p4peogHzvgeRxPCLEfbdkXcQpC7UNSdM8ikGT+TxCGOzTcH4ZvCLAV
code.cs50.io/ Name: AWSALBCORS
Value: 4OE/AanOOWjOMS7RPvc8afCL8PK5mpWXU6fveq1+u/1iX+EX/ksNjWWaqKgPLW15UEbvQ6p4peogHzvgeRxPCLEfbdkXcQpC7UNSdM8ikGT+TxCGOzTcH4ZvCLAV
cs50.dev/ Name: session
Value: b5ddab86-0fb6-4678-8c29-78997a3d115c
cs50.dev/ Name: AWSALB
Value: NEB6v9PBYnL236fMUiEyHFMF450bebuONRpLVHQqlTbeMz2PfNG5Le99bpmf93T38/qTH5rjvqvSsYCVQnWNUk2iC1BjIIyNNc3lAe0BbrwTzSo/3hMS26fKmwv7
cs50.dev/ Name: AWSALBCORS
Value: NEB6v9PBYnL236fMUiEyHFMF450bebuONRpLVHQqlTbeMz2PfNG5Le99bpmf93T38/qTH5rjvqvSsYCVQnWNUk2iC1BjIIyNNc3lAe0BbrwTzSo/3hMS26fKmwv7

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
Content-Security-Policy frame-ancestors 'self'
Strict-Transport-Security max-age=31536000; includeSubDomains
X-Content-Type-Options nosniff
X-Frame-Options SAMEORIGIN
X-Xss-Protection 0