What powers rsf.is?
Last seen Jun 2026 · 21 technologies across 15 categories
Analytics
Google Analytics
since Jan 2019
CDN
Amazon CloudFront
since Feb 2023
Amazon SES
since Nov 2024
Font scripts
Google Font API
since Oct 2022
JavaScript frameworks
Socket.io
since Jan 2019
JavaScript graphics
JavaScript libraries
Miscellaneous
PWA
since Oct 2022
PaaS
Amazon Web Services
since Aug 2022
Programming languages
Security
reCAPTCHA
since Oct 2022
Tag managers
Google Tag Manager
since Oct 2024
UI frameworks
Web frameworks
Ruby on Rails
since Jan 2019
Webmail
Microsoft 365
since Aug 2022
Audience
- 59% desktop
- 41% phone
Iceland
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
2.32 / 10 · ranked #2,835,451 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: Icelandic
- CDN: Amazon CloudFront
- Weight: 1.8 MB · 38 requests
Homepage as crawled by the HTTP Archive, Jul 2026.