What powers 1zsmost.cz?
Last seen Sep 2026 · 10 technologies across 7 categories
JavaScript libraries
Miscellaneous
Operating systems
Debian
since Apr 2023
Programming languages
PHP
since Feb 2020
Security
reCAPTCHA
since Apr 2023
Web servers
Webmail
Microsoft 365
since Jan 2023
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.37 / 10 · ranked #7,809,160 of all domains
3 referring domains · OpenPageRank
Search traffic
0 est. monthly organic visits (US)
1 keywords in Google's top 30
Core Web Vitals
| LCP | 0.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 7.9 MB · 60 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on WMS-AS (77.237.128.138, IPv6)
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 16,392,633, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted