What powers 
s4a.cat?
Last seen Sep 2026 · 11 technologies across 10 categories
Analytics
Google Analytics
since Jun 2018
CDN
GitHub Pages
since May 2017
JavaScript libraries
PaaS
OVHcloud
since Aug 2022
Payment processors
PayPal
since May 2017
Programming Languages
Ruby
since Jun 2018
Security
HSTS
since Apr 2026
Video players
YouTube
since May 2017
Web Frameworks
Ruby on Rails
since Jun 2018
Web servers
Nginx
since Aug 2018
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Oct 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 84% desktop
- 16% phone
Brazil
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.73 / 10 · ranked #291,092 of all domains
121 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Catalan
- Weight: 0.0 MB · 2 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on OVHcloud (37.187.75.164)
- DNS: OVHcloud
- Email: OVHcloud
- Email security: no SPF record, no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 56,747, 3 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.s4a.cat | 8 |
| s4a.cat | 3 |