What powers 
knihovna-cl.cz?
Last seen Jun 2025 · 21 technologies across 15 categories
CMS
Databases
MySQL
since Nov 2023
Font scripts
Google Font API
since Dec 2020
JavaScript graphics
Chart.js
since Dec 2020
JavaScript libraries
Swiper
since Nov 2023
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Operating systems
Debian
since Mar 2022
Page builders
Divi
since Nov 2023
Performance
Priority Hints
since Nov 2023
Programming languages
UI frameworks
Web frameworks
Spring
since Dec 2020
Web servers
Nginx
since Nov 2023
Webmail
Microsoft 365
since Aug 2022
WordPress plugins
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
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.52 / 10 · ranked #874,802 of all domains
36 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Organisation
- Library in Česká Lípa
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on FASTER-AS (95.129.102.64)
- DNS: one.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed, MTA-STS, BIMI
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 1,435,060, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.knihovna-cl.cz | 16 |
| tritius.knihovna-cl.cz | 10 |