URL Inspection: https://cs125.cs.illinois.edu

Open Cached · just now

UP

HTTP Status

200

Ping

N/A

Technologies

7

Technologies Detected

Infrastructure & Network (1)

CDN	Cloudflare CDN https://www.cloudflare.com
Evidence: • Header Cf-Ray: 9a381ba5784c6e25-IAD • Header Server: cloudflare

Development (1)

JavaScript Library	Webpack https://webpack.js.org
Evidence: • HTML <script>: https://cs125.cs.illinois.edu/_next/static/chunks/webpack-05d9d7934135b53b.js

Analytics & Marketing (1)

Analytics	Cloudflare Web Analytics https://www.cloudflare.com/web-analytics
Evidence: • HTML <script>: https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015

Security & Privacy (1)

Security	Proofpoint Email Defense https://www.proofpoint.com
Evidence: • DMARC RUA: mailto:dmarc_rua@emaildefense.proofpoint.com • DMARC RUF: mailto:dmarc_ruf@emaildefense.proofpoint.com

SSL & Certificates (1)

Certificate Authority	Let's Encrypt https://letsencrypt.org
Evidence: • SSL Certificate Issuer: C=US, O=Let's Encrypt, CN=E7

Other (2)

Framework	Next.js https://nextjs.org/
Evidence: • Header X-Powered-By: Next.js • HTML <script>: https://cs125.cs.illinois.edu/_next/static/chunks/polyfills-78c92fac7aa8fdd8.js • HTML <script>: https://cs125.cs.illinois.edu/_next/static/chunks/webpack-05d9d7934135b53b.js • HTML <script>: https://cs125.cs.illinois.edu/_next/static/chunks/framework-df102e57b029720c.js • HTML <script>: https://cs125.cs.illinois.edu/_next/static/chunks/main-593372979bbff5b3.js ... and 3 more

Social Media	Gravatar https://gravatar.com
Evidence: • HTML <img>: https://s.gravatar.com/avatar/f018d0710c707024e5ad34f1b0dec4a6?s=120&r=pg&d=https%3A%2F%2Fwww.cs124.org%2Fimages%2Flogo-120x120.png • HTML <img>: https://s.gravatar.com/avatar/f018d0710c707024e5ad34f1b0dec4a6?s=120&r=pg&d=https%3A%2F%2Fwww.cs124.org%2Fimages%2Flogo-120x120.png

Metadata & SEO

Title

Learn CS Online: An Introduction to Computer Science

Language

en

Viewport

width=device-width, initial-scale=1, shrink-to-fit=no

Domain Owner Information

View Full WHOIS

SSL/TLS Certificate

View Full SSL Report

Issued By

C=US, O=Let's Encrypt, CN=E7

Security Score

75 /100

Social Media Cards

OpenGraph (5 properties)

Type

website

Description

An introduction to computer science

Title

Learn CS Online: An Introduction to Computer Science

Image

https://learncs.online/images/logo-120x120.png

Url

https://learncs.online/

Network & Hosting

View DNS Records

130.126.151.51 • AS38

UIUC

Reverse DNS: cs124-frontend-01.cs.illinois.edu

CNAME Record

This domain is an alias for:

cs124-frontend-01.cs.illinois.edu

External Dependencies

cloudflareinsights.com (1 resources)

Scripts (1)

• https://static.cloudflareinsights.com/beacon.min.js/vcd15cbe7772f49c399c6a5babf22c1241717689176015

google.com (1 resources)

Iframes (1)

• https://calendar.google.com/calendar/embed?showTitle=0&showPrint=0&mode=WEEK&height=600&wkst=1&bgcolor=%23FFFFFF&src=18252528b9e79238a930cf590ccaa81d7a3ff27c59f2292ff7d6391a55f53b4b%40group.calendar.google.com&color=%23B1440E&ctz=America%2FChicago

gravatar.com (1 resources)

Images (1)

• https://s.gravatar.com/avatar/f018d0710c707024e5ad34f1b0dec4a6?s=120&r=pg&d=https%3A%2F%2Fwww.cs124.org%2Fimages%2Flogo-120x120.png

Inspected on November 24, 2025 at 10:08 UTC