What powers 
oks.de?
Last seen Sep 2026 · 23 technologies across 15 categories
CDN
CMS
Font scripts
JavaScript Frameworks
JavaScript Libraries
Miscellaneous
Operating systems
Photo galleries
Programming Languages
Security
Tag managers
UI frameworks
Web server extensions
Web Servers
Webmail
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
- 85% phone
- 15% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.93 / 10 · ranked #626,485 of all domains
64 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German (Germany)
- Weight: 7.1 MB · 46 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Oskar-Kämmer-Schule (Braunschweig)
- Founded: 1945
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on GDS-1 (217.13.79.219)
- DNS: gaertner.de
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Sectigo, RSA 3072, wildcard, expires Feb 2027
- Common Crawl link graph: rank 10,415,368, 5 hosts
- Verified with: Adobe, Apple Business, Brevo, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.oks.de | 16 |
| persisportal.oks.de | 7 |
| jobs.oks.de | 6 |
Full technology history →
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