What powers ssdr.cz?
Last seen Sep 2026 · 23 technologies across 13 categories
CDN
Editors
Font scripts
Google Font API
since Mar 2020
JavaScript frameworks
AlertifyJS
since Jul 2021
JavaScript graphics
JavaScript libraries
Maps
Google Maps
since Dec 2022
Miscellaneous
Open Graph
since Sep 2023
Programming languages
PHP
since Mar 2020
Rich text editors
UI frameworks
Web servers
Apache HTTP Server
since Mar 2020
Webmail
Microsoft 365
since Apr 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 87% phone
- 13% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.74 / 10 · ranked #4,715,389 of all domains
6 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 31.1 MB · 156 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on WEDOS (46.28.107.91, IPv6)
- DNS: regzone.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Oct 2026
- Common Crawl link graph: rank 24,662,434, 2 hosts
- Verified with: Google, Microsoft 365
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Microsoft 365 Apr 2026