What powers wirtz-koeln.de?
Last seen Sep 2026 · 22 technologies across 14 categories
Caching
WordPress Super Cache
since Apr 2020
CMS
Cookie compliance
Cookie Information
since May 2022
Databases
MySQL
since Apr 2020
Font scripts
Twitter Emoji (Twemoji)
since Apr 2020
Hosting
IONOS
since Aug 2022
JavaScript graphics
Chart.js
since Apr 2020
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
RSS
since Dec 2022
Photo galleries
PhotoSwipe
since Sep 2022
Programming languages
PHP
since Apr 2020
UI frameworks
Web servers
Apache HTTP Server
since Apr 2020
WordPress plugins
Cookie Information plugin
since May 2022
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 Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.42 / 10 · ranked #7,289,742 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.1 s |
| CLS | 0 |
| TTFB | 2900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 3.9 MB · 127 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on IONOS (217.160.0.131)
- DNS: IONOS
- Email: IONOS
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Sectigo, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 30,241,013
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted