What powers foerster-optik.de?

Last seen Sep 2026 · 13 technologies across 10 categories

CDN

Google Cloud CDN
since Feb 2025

CMS

Wagtail
since Feb 2025

IaaS

Google Cloud
since Feb 2025

JavaScript frameworks

React v18.2.0
since Feb 2025

JavaScript libraries

LazySizes
since Sep 2022
MobX
since Feb 2025

Live chat

WhatsApp Business Chat
since Sep 2022

Miscellaneous

HTTP/3
since Feb 2025
Open Graph
since Sep 2022
Webpack
since Feb 2025

Programming languages

Python
since Feb 2025

Security

HSTS
since Feb 2025

Web frameworks

Django
since Feb 2025

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 Oct 2026.

  • Oct 2026 *: Restricted (was Allowed)

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Standards: llms.txt

Full breakdown

Open Page Rank

1.26 / 10 · ranked #9,214,601 of all domains

5 referring domains · OpenPageRank

Infrastructure

  • Hosted on Google Cloud (216.162.200.200)
  • DNS: udag.de
  • Email: Google Workspace
  • Email security: SPF (soft fail), DMARC monitor only
  • SSL: ZeroSSL, RSA 2048, expires Jan 2027
  • Common Crawl link graph: rank 38,866,325, 2 hosts
  • Verified with: Brevo, Google, OpenAI

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

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