What powers semester.ly?
Last seen Sep 2026 · 19 technologies across 11 categories
Analytics
Google Analytics
since Jan 2019
Authentication
Facebook Login
since Sep 2023
CDN
cdnjs
since Sep 2023
Cloudflare
since Sep 2023
Font scripts
Google Font API
since May 2017
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Azure
since Sep 2023
Reverse Proxy
Security
HSTS
since Sep 2023
UI frameworks
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.23 / 10 · ranked #9,504,447 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 1700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Hosted on Microsoft (52.224.136.230)
- DNS: Azure DNS
- Email: Zoho Mail
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,092,630, 2 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| jhu.semester.ly | 18 |
| semester.ly | 5 |