What powers 
kja.de?
Last seen Sep 2026 · 7 technologies across 5 categories
Analytics
JavaScript libraries
Live chat
Miscellaneous
Security
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
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.49 / 10 · ranked #901,888 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.3 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 1.3 MB · 40 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Erzbistum Köln | Bereich Jugend-, Schul- & Hochschulpastoral
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on BOREUS (208.82.73.21)
- DNS: IONOS
- Email: antispameurope.com
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 12,451,267, 13 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted