What powers rbbk-duisburg.de?
Last seen Sep 2026 · 27 technologies across 14 categories
CMS
Databases
Font scripts
Hosting
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Programming languages
Video players
Web servers
Webmail
WordPress plugins
WordPress themes
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
1.30 / 10 · ranked #8,651,652 of all domains
5 referring domains · OpenPageRank
Core Web Vitals
| LCP | 5.4 s |
| CLS | 0 |
| TTFB | 4600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 14.9 MB · 79 requests
- WordPress theme: colibri-wp · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Robert Bosch Vocational College Duisburg
- Founded: 1897
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on MITTWALD-AS Mittwald CM Service GmbH und Co. KG (188.94.254.9)
- DNS: agenturserver.co
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail)
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 30,668,690, 3 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.rbbk-duisburg.de | 22 |
| rbbk-duisburg.de | 20 |
Full technology history →
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Recent changes
- dropped Burst Feb 2026