What powers slf.rocks?
Last seen Aug 2026 · 21 technologies across 13 categories
Analytics
Google Analytics
since Jan 2019
Caching
Varnish
since Jun 2024
Editors
Microsoft Word
since Apr 2024
Sendgrid
since Feb 2024
JavaScript frameworks
Stimulus
since Feb 2021
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Mobile frameworks
jQuery-pjax
since Jan 2019
Performance
Turbo
since Jun 2022
Programming languages
Ruby
since Jan 2019
Security
Web frameworks
Ruby on Rails
since Jan 2019
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 Aug 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 90% phone
- 10% desktop
United Kingdom
Ireland
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.92 / 10 · ranked #1,742,089 of all domains
47 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Weight: 1.6 MB · 66 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.slf.rocks | 21 |
| slf.rocks | 19 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Cart Functionality Oct 2025
- dropped Etix Oct 2025