What powers 
social.cologne?
Last seen Oct 2026 · 5 technologies across 4 categories
JavaScript libraries
Message boards
Miscellaneous
Security
AI Crawlers
Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- GPTBot 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
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| zeugs | #14 | 1 |
| cologne mark | #33 | 0 |
| surfguard | #28 | 0 |
| vhs kln | #21 | 0 |
| polycosmos | #22 | 0 |
| markus barth | #52 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
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
5.45 / 10 · ranked #165,304 of all domains
217 referring domains · OpenPageRank
Search traffic
1 est. monthly organic visits (US)
6 keywords in Google's top 30
Core Web Vitals
| LCP | 1.7 s |
| INP | 125 ms |
| CLS | 0.05 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- Weight: 11.0 MB · 236 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Registered Jan 2021 (5 years) via OVH SAS, renews Jan 2027
- Hosted on Hetzner (94.130.67.178, IPv6)
- DNS: desec.io
- Email: scaleway.com
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 484,326, 4 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| social.cologne | 5 |
| nitter.social.cologne | 3 |
Full technology history →
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Recent changes
- dropped React Aug 2026
- dropped Ruby Aug 2026
- dropped Ruby on Rails Aug 2026