What powers 
vaclavhavel-library.org?
Last seen Oct 2025 · 12 technologies across 7 categories
Analytics
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Jan 2022
Web servers
Apache HTTP Server
since Mar 2021
Webmail
Microsoft 365
since Aug 2023
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
4.69 / 10 · ranked #354,365 of all domains
149 referring domains · OpenPageRank
Infrastructure
- Registered Apr 2004 (22 years) via Gransy, s.r.o., renews Apr 2027
- Hosted on Blindspot PRO-ZETA a.s. (91.239.201.14, IPv6)
- DNS: thinline.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, MTA-STS, BIMI
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 584,079, 5 hosts
- Verified with: Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| archive.vaclavhavel-library.org | 10 |
| tvare-vzdoru.vaclavhavel-library.org | 6 |