What powers 
isensee.de?
Last seen Aug 2026 · 35 technologies across 17 categories
CMS
Databases
Ecommerce
Editors
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
Page builders
Performance
Photo galleries
Programming languages
UI frameworks
Web frameworks
Web server extensions
Web servers
WordPress plugins
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
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.83 / 10 · ranked #701,534 of all domains
52 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.4 s |
| INP | 100 ms |
| CLS | 0.05 |
| TTFB | 4000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: German
- Weight: 1.9 MB · 130 requests
- WordPress theme: g5plus-auteur (child: g5plus-auteur-child) · all themes
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Isensee Verlag
- Founded: 1892
- Country: Germany
From Wikidata (CC0).
Infrastructure
- Hosted on IONOS (217.160.0.154, IPv6)
- DNS: IONOS
- Email: ewetel.de
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Nov 2026
- Common Crawl link graph: rank 2,950,465, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.isensee.de | 29 |
| isensee.de | 8 |
Full technology history →
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Recent changes
- dropped Autoptimize Aug 2026
- dropped Contact Form 7 Aug 2026
- dropped LazySizes Aug 2026
- dropped Lodash Aug 2026
- dropped WordPress Super Cache Aug 2026
- detected Animate.css Jul 2026
- detected Elementor Jul 2026
- detected Modernizr Jul 2026
- detected OWL Carousel Jul 2026
- detected Slick Jul 2026
- detected Underscore.js Jul 2026
- detected WP Rocket Jul 2026