What powers duerninger.com?
Last seen Oct 2026 · 9 technologies across 8 categories
CDN
Ecommerce
JavaScript frameworks
JavaScript libraries
Miscellaneous
Programming languages
Security
Web frameworks
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Search and AI assistants
- Amazonbot Blocked
The other 32 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
1 of 33 AI crawlers blocked
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.78 / 10 · ranked #4,451,696 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: German
- Weight: 1.0 MB · 27 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Abraham Dürninger & Co GmbH
- Founded: 1747
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on COGECO-PEER1 (65.39.250.34)
- Email: bwk.net
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 15,122,704, 3 hosts
- Verified with: GlobalSign
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
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Recent changes
- dropped Apache HTTP Server Jan 2026