What powers jvl.de?
Last seen Sep 2026 · 12 technologies across 8 categories
CMS
Hosting
JavaScript libraries
Miscellaneous
Programming languages
Security
Web servers
Webmail
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.27 / 10 · ranked #1,166,504 of all domains
32 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German (Germany)
- Weight: 1.0 MB · 48 requests
- Structured data: Microdata, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Justus von Liebig School, Hanover
- Founded: 1989
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on KEYWEB-AS (87.118.82.36)
- DNS: STRATO
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC reject
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 10,448,084, 2 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- detected LazySizes Sep 2026