What powers stadtwerke-kalkar.de?
Last seen Oct 2026 · 20 technologies across 13 categories
Advertising
Caching
CMS
Cookie compliance
JavaScript frameworks
JavaScript libraries
Miscellaneous
Mobile frameworks
PaaS
Programming languages
Security
UI frameworks
Video players
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
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
1.00 / 10 · ranked #12,557,650 of all domains
3 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German (Germany)
- CDN: Fastly
- Weight: 1.1 MB · 77 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Fastly (151.101.2.216)
- DNS: rku-it.de
- Email: gelsenwasser.de
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 33,823,534, 4 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| stadtwerke-kalkar.de | 15 |
| onlineservice.stadtwerke-kalkar.de | 8 |
| www.stadtwerke-kalkar.de | 5 |
Full technology history →
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Recent changes
- detected core-js Jul 2026
- detected Isotope Jul 2026
- detected jQuery UI Jul 2026
- detected Microsoft Advertising Jul 2026
- detected Open Graph Jul 2026
- detected Platform.sh Jul 2026
- detected Popper Jul 2026
- detected Swiper Jul 2026
- detected toastr Jul 2026
- detected Usercentrics Jul 2026
- detected Varnish Jul 2026
- detected VideoJS Jul 2026