What powers justincast.de?
Last seen Sep 2026 · 12 technologies across 9 categories
Hosting
JavaScript libraries
Miscellaneous
Operating systems
Performance
Programming languages
Web frameworks
Web servers
Webmail
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
- 100% phone
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.74 / 10 · ranked #4,702,221 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| CLS | 0 |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 2.2 MB · 66 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on STRATO (81.169.159.195)
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 31,501,394, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| justincast.de | 10 |
| www.justincast.de | 7 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped CKEditor Aug 2026
- dropped ZURB Foundation Aug 2026
- detected Open Graph Jul 2026
- detected Priority Hints Jul 2026
- detected PWA Jul 2026