What powers 
fracfocus.org?
Last seen Jan 2026 · 16 technologies across 12 categories
Analytics
Google Analytics
since Aug 2018
CDN
Cloudflare
since Aug 2018
jsDelivr
since Sep 2024
CMS
Orchard Core
since Sep 2024
Font scripts
Font Awesome
since Aug 2022
Google Font API
since Aug 2022
JavaScript libraries
Miscellaneous
Open Graph
since Jan 2026
Operating systems
Windows Server
since Aug 2022
Programming languages
PHP
since Aug 2018
Security
HSTS
since Jan 2026
UI frameworks
Web frameworks
Microsoft ASP.NET
since Aug 2022
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 Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% desktop
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
5.73 / 10 · ranked #134,297 of all domains
246 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.4 s |
| INP | 25 ms |
| CLS | 0.35 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Infrastructure
- Registered Dec 2010 (15 years) via Tucows Domains Inc., renews Dec 2026
- Hosted on ISOCENTRIC (206.214.166.209)
- DNS: isocentric.com
- Email: no MX record returned
- SSL: Let's Encrypt, RSA 3072, expires Dec 2026
- Common Crawl link graph: rank 490,969, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| fracfocus.org | 16 |
| www.fracfocus.org | 9 |