What powers plenum.de?
Last seen Aug 2026 · 19 technologies across 12 categories
CMS
TYPO3 CMS
since Mar 2021
Font scripts
Google Font API
since Sep 2023
Issue trackers
Sentry
since Sep 2023
JavaScript frameworks
React
since Sep 2023
JavaScript libraries
Loadable-Components
since Sep 2023
Marketing automation
HubSpot
since Jul 2025
Miscellaneous
Babel
since Sep 2022
DocuSign
since Aug 2023
Open Graph
since Sep 2022
Prism
since Sep 2023
PWA
since Sep 2022
Programming languages
PHP
since Mar 2021
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Sep 2022
Web servers
Nginx
since Jul 2023
Webmail
Apple iCloud Mail
since Jan 2023
Microsoft 365
since Sep 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
Audience
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.28 / 10 · ranked #1,152,022 of all domains
29 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.2 s |
| INP | 50 ms |
| CLS | 0.25 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 15.6 MB · 32 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on GD-EMEA-DC-CGN1 (134.119.225.71)
- DNS: ns14.net
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: GoDaddy, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 8,208,341, 4 hosts
- Verified with: Apple Business, DocuSign, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| karriere.plenum.de | 13 |
| www.plenum.de | 13 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Cloudflare Apr 2026
- dropped Cloudflare Bot Management Apr 2026
- dropped reCAPTCHA Apr 2026
- detected reCAPTCHA Nov 2025