What powers sepsem.cz?
Last seen Aug 2026 · 7 technologies across 6 categories
Analytics
Google Analytics
since Apr 2019
Simple Analytics
since Jul 2026
Authentication
Facebook Login
since Sep 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Jul 2026
Web servers
Nginx
since Nov 2020
AI Crawlers
robots.txt could not be read at the last check (Aug 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.05 / 10 · ranked #11,817,910 of all domains
2 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech (Czechia)
- Weight: 2.3 MB · 44 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on IGNUM-AS Czech Republic (62.109.151.50)
- DNS: ignum.com
- Email: no MX record returned
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Dec 2026
- Common Crawl link graph: rank 47,487,335
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.sepsem.cz | 7 |
| sepsem.cz | 3 |