What powers stemma.org?
Last seen Jun 2026 · 23 technologies across 15 categories
Analytics
Google Analytics
since Apr 2022
Authentication
Facebook Login
since Apr 2022
CDN
Cloudflare
since Feb 2023
jsDelivr
since Nov 2023
Font scripts
Font Awesome
since May 2025
Fundraising & donations
DonorPerfect
since Feb 2023
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
PaaS
Amazon Web Services
since Apr 2022
Photo galleries
PhotoSwipe
since Sep 2022
Programming languages
Java
since Apr 2022
Rich text editors
Security
Cloudflare Bot Management
since Feb 2023
HSTS
since Sep 2022
Video players
YouTube
since Apr 2022
Webmail
Microsoft 365
since Aug 2022
Audience
United States
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.41 / 10 · ranked #2,658,709 of all domains
18 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 2.8 MB · 106 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| www.stemma.org | 23 |
| stemma.org | 21 |
Full technology history →
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Recent changes
- detected YouTube Dec 2025