What powers 
clex.ch?
Last seen Sep 2026 · 16 technologies across 10 categories
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
UI frameworks
Web frameworks
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 * added to robots.txt
- Aug 2026 * removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 51% phone
- 49% desktop
Switzerland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
6.01 / 10 · ranked #109,329 of all domains
165 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 50 ms |
| CLS | 0.1 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 2.0 MB · 22 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SITROX (93.187.192.221)
- DNS: IBM NS1
- Email: sitrox.com
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 1,146,567, 18 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| ai.clex.ch | 11 |
| ar.clex.ch | 11 |
| bl.clex.ch | 11 |
| ur.clex.ch | 10 |
| zg-compwork.clex.ch | 8 |
Full technology history →
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Recent changes
- detected Font Awesome Feb 2026