What powers 
bibliothekderfreien.de?
Last seen Jan 2024 · 14 technologies across 9 categories
CMS
Databases
MySQL
since Dec 2022
Editors
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Jan 2024
Programming languages
PHP
since Dec 2022
Web servers
Apache HTTP Server
since Dec 2022
WordPress themes
Twenty Twenty
since Dec 2022
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
Open Page Rank
3.70 / 10 · ranked #764,359 of all domains
66 referring domains · OpenPageRank
Organisation
- Library of the Free
- Founded: 1993
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on WISSENSCHAFTSLADEN-AS Germany (91.204.6.77)
- DNS: free.de
- Email: free.de
- Email security: SPF (hard fail), DMARC reject, CAA
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 773,633, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted