What powers 
ssls.cz?
Last seen Apr 2026 · 6 technologies across 5 categories
JavaScript libraries
Miscellaneous
PWA
since Aug 2022
Programming languages
PHP
since Sep 2021
Security
HSTS
since Sep 2022
Web servers
Apache HTTP Server
since Apr 2024
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
- 100% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.21 / 10 · ranked #449,322 of all domains
23 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on COOLHOUSING-AS Vinohradska 190 (89.187.145.86, IPv6)
- DNS: alpiro.cz
- Email: alpiro.cz
- Email security: SPF, DMARC reject, MTA-STS, BIMI
- SSL: Alpiro s.r.o., ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 2,126,416, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted