What powers esfrs.org?
Last seen Jun 2026 · 14 technologies across 12 categories
Analytics
Matomo Analytics
since Jun 2023
CMS
JavaScript libraries
Load balancers
Mobile frameworks
Operating systems
Windows Server
since Jan 2019
Programming languages
PHP
since Jun 2023
Security
HSTS
since Dec 2025
UI frameworks
GOV.UK Frontend
since Jun 2023
Web frameworks
Microsoft ASP.NET
since Jan 2019
Web servers
Webmail
Apple iCloud Mail
since Jan 2023
Audience
- 75% phone
- 25% desktop
United Kingdom
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
3.84 / 10 · ranked #697,056 of all domains
71 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- Weight: 2.3 MB · 32 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| fwweb.esfrs.org | 8 |
| www.esfrs.org | 8 |
Full technology history →
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Recent changes
- detected HSTS Dec 2025