What powers 
vhs-karlsruhe.de?
Last seen Sep 2026 · 19 technologies across 10 categories
Analytics
CMS
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
UI frameworks
Web servers
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
- 75% phone
- 20% desktop
- 5% tablet
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.69 / 10 · ranked #353,565 of all domains
106 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0.1 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 2.0 MB · 43 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Industry: Education (declares
CollegeOrUniversity)
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on CONNECTINGBYTES-AS (84.246.120.150)
- DNS: dns1.de
- Email: karlsruhe.de
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 6,998,820, 3 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.vhs-karlsruhe.de | 17 |
| vhs-karlsruhe.de | 6 |
Full technology history →
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Recent changes
- detected Bootstrap Jul 2026
- detected core-js Jul 2026
- detected Element UI Jul 2026
- detected Hammer.js Jul 2026
- detected HSTS Jul 2026
- detected Modernizr Jul 2026
- detected Open Graph Jul 2026
- detected parcel Jul 2026
- detected PhotoSwipe Jul 2026
- detected Popper Jul 2026
- detected SWC Jul 2026
- detected Swiper Jul 2026
- detected Vue.js Jul 2026