What powers karlgross.de?
Last seen Aug 2026 · 11 technologies across 7 categories
CMS
TYPO3 CMS
since Feb 2019
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Programming languages
PHP
since Feb 2019
Security
HSTS
since May 2025
Web servers
Apache HTTP Server
since Feb 2019
Webmail
Apple iCloud Mail
since Jun 2024
Microsoft 365
since May 2023
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 71% desktop
- 29% phone
Germany
Vietnam
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.09 / 10 · ranked #1,440,497 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German (Germany)
- Weight: 4.9 MB · 47 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on PLUTEX (31.24.146.81)
- DNS: ewetel.de
- Email: no MX record returned, SPF names Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine
- SSL: DigiCert, RSA 4096, expires Mar 2027
- Common Crawl link graph: rank 10,090,980, 2 hosts
- Verified with: Apple Business, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted