What powers extramet.ch?
Last seen Sep 2026 · 10 technologies across 7 categories
Analytics
Google Analytics
since Aug 2022
Matomo Analytics
since May 2025
JavaScript frameworks
JavaScript libraries
LazySizes
since May 2025
Miscellaneous
Open Graph
since Sep 2022
PWA
since May 2025
Security
Web servers
Webmail
Microsoft 365
since Aug 2022
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.99 / 10 · ranked #1,611,000 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English
- Weight: 2.3 MB · 58 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- DNS: senselan.ch
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 19,558,700
- Verified with: Have I Been Pwned, Microsoft 365, SwissSign
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted