What powers strefa.de?
Last seen Sep 2026 · 18 technologies across 12 categories
Analytics
JavaScript libraries
Load balancers
Miscellaneous
Operating systems
Performance
Reviews
Security
Tag managers
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
- 75% phone
- 19% desktop
- 6% tablet
Germany
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.67 / 10 · ranked #2,209,820 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 75 ms |
| CLS | 0.2 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: German
- Weight: 5.2 MB · 65 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- STREFA s.r.o.
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on VSHOSTING (46.243.48.60)
- Email: no MX record returned
- Email security: SPF (soft fail)
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 54,737,076, 4 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- detected lit-element Aug 2026
- detected lit-html Aug 2026
- dropped Bootstrap May 2026
- dropped Trustpilot May 2026