What powers 
pls-zh.ch?
Last seen Feb 2026 · 3 technologies across 3 categories
Analytics
Google Analytics
since Jan 2019
Reverse proxies
IBM DataPower
since Oct 2019
Security
HSTS
since Sep 2022
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
- 70% phone
- 30% desktop
Switzerland
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.62 / 10 · ranked #384,091 of all domains
53 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 250 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on STADTZUERI (194.56.34.105)
- DNS: stzh.ch
- Email: no MX record returned
- SSL: DigiCert, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 1,255,657, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted