What powers holtzbrinckverlage.de?
Last seen Aug 2025 · 23 technologies across 17 categories
Advertising
Microsoft Advertising
since Dec 2024
Analytics
Facebook Pixel
since Nov 2022
TikTok Pixel
since Mar 2023
Appointment scheduling
Calendly
since Nov 2022
CDN
Cloudinary
since Nov 2022
Cookie compliance
Usercentrics
since Nov 2022
JavaScript frameworks
JavaScript graphics
Chart.js
since Nov 2022
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2022
Webpack
since Nov 2022
PaaS
Heroku
since Nov 2022
Programming languages
Search engines
Security
HSTS
since Feb 2024
Tag managers
Google Tag Manager
since Nov 2022
Video players
Twitch Player
since Nov 2022
Web servers
Cowboy
since Nov 2022
Webmail
Google Workspace
since Nov 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Open Page Rank
3.38 / 10 · ranked #1,026,838 of all domains
27 referring domains · OpenPageRank
Infrastructure
- Hosted on PROIO (185.20.191.221)
- DNS: udag.de
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Oct 2026
- Common Crawl link graph: rank 10,235,568, 2 hosts
- Verified with: Google, Meta Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted