What powers prs.org?
Last seen Oct 2026 · 35 technologies across 17 categories
Analytics
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript frameworks
JavaScript libraries
LMS
Marketing automation
Miscellaneous
PaaS
Programming languages
Security
Video players
Web frameworks
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 52% phone
- 48% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.43 / 10 · ranked #412,785 of all domains
107 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0.2 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 30.0 MB · 141 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Philosophical Research Society
- Founded: 1934
- Country: United States
From Wikidata (CC0).
Infrastructure
- Registered Jun 1996 (30 years) via Register.com - Network Solutions, LLC, renews Jun 2030
- Hosted on Weebly (Square) (199.34.228.159)
- DNS: Register.com
- Email: Google Workspace
- Email security: no SPF record, DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 31,245, 7 hosts
- Verified with: Google
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.prs.org | 27 |
| learn.prs.org | 14 |