What powers koelner-dommusik.de?

Last seen Sep 2026 · 14 technologies across 12 categories

Analytics

Matomo Analytics
since Aug 2022

Hosting

Hetzner
since Aug 2022

JavaScript frameworks

Next.js v15.5.12
since Sep 2021
Next.js App Router
since Dec 2023
React
since Sep 2021

JavaScript libraries

Swiper
since Oct 2023

Miscellaneous

Webpack
since Sep 2021

Operating systems

Ubuntu
since Sep 2021

Performance

Priority Hints
since Sep 2023

Programming languages

Node.js
since Sep 2021

Security

HSTS
since Sep 2022

UI frameworks

Tailwind CSS
since Aug 2022

Web servers

Nginx v1.18.0
since Sep 2021

Webmail

Google Workspace
since Aug 2022

AI Crawlers

No robots.txt, so all AI crawlers are allowed by default. Checked Sep 2026.

  • robots.txt not found
  • llms.txt not found
  • ai.txt not found

See who blocks each AI crawler across the web

AI Crawlers

No robots.txt, all AI crawlers allowed

Full breakdown

Audience

  • 88% phone
  • 12% desktop
  • Germany

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

3.49 / 10 · ranked #904,725 of all domains

44 referring domains · OpenPageRank

Core Web Vitals

LCP1.1 s
INP100 ms
CLS0
TTFB400 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: German
  • Weight: 1.1 MB · 44 requests

Homepage as crawled by the HTTP Archive, Sep 2026.

Organisation

  • Kölner Domchor
  • Founded: 1863
  • Country: Germany

From Wikidata (CC0).

Infrastructure

  • Hosted on Hetzner (159.69.102.120)
  • DNS: Hetzner
  • Email: Google Workspace
  • Email security: SPF (soft fail), DMARC quarantine
  • SSL: Let's Encrypt, RSA 4096, expires Dec 2026
  • Common Crawl link graph: rank 1,095,549, 3 hosts
  • Verified with: Microsoft 365

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

Subdomains

HostTechs
www.koelner-dommusik.de 12
koelner-dommusik.de 6

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