What powers rc.org?
Last seen Aug 2026 · 13 technologies across 11 categories
Analytics
Matomo Analytics
since Aug 2020
Ecommerce
Cart Functionality
since Nov 2021
Mailman
since Aug 2025
Font scripts
Font Awesome
since Aug 2025
JavaScript frameworks
JavaScript libraries
Operating systems
Ubuntu
since Apr 2019
Programming languages
Security
HSTS
since Sep 2022
UI frameworks
Bootstrap
since Aug 2025
Web servers
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 59% desktop
- 41% phone
United States
Canada
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.83 / 10 · ranked #701,394 of all domains
62 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 225 ms |
| CLS | 0 |
| TTFB | 1100 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 0.1 MB · 18 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on TNF-AS (213.125.4.244)
- DNS: Network Solutions
- Email: rc.org
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 695,423, 6 hosts
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| list.rc.org | 6 |
| sal.rc.org | 6 |
| www.rc.org | 5 |