What powers 
cdc.de?
Last seen Sep 2026 · 16 technologies across 10 categories
CMS
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Security
UI frameworks
Video players
Web servers
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 58% phone
- 42% desktop
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.76 / 10 · ranked #271,207 of all domains
93 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German (Germany)
- Weight: 0.5 MB · 16 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Carl Duisberg Centren
From Wikidata (CC0).
Infrastructure
- Hosted on MITTWALD-AS Mittwald CM Service GmbH und Co. KG (185.215.158.114)
- DNS: netcologne.de
- Email: Hornetsecurity
- Email security: SPF (hard fail), DMARC quarantine
- SSL: Let's Encrypt, RSA 3072, expires Dec 2026
- Common Crawl link graph: rank 754,894, 5 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| daflms.cdc.de | 11 |
| www.cdc.de | 6 |
Full technology history →
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Recent changes
- dropped Etracker May 2026