What powers 
slovnik.cz?
Last seen Aug 2026 · 4 technologies across 4 categories
Analytics
Operating systems
Security
Web Servers
AI Crawlers
Blocks 9 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 24 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
9 of 33 AI crawlers blocked
Audience
- 54% desktop
- 46% phone
Czechia
Germany
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.89 / 10 · ranked #258,186 of all domains
100 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 325 ms |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 0.6 MB · 71 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SECURITYNET-AS (46.36.38.180)
- DNS: websupport.cz
- Email: Seznam Email
- Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Nov 2026
- Common Crawl link graph: rank 83,159, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| slovnik.cz | 4 |
| www.slovnik.cz | 4 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Microsoft 365 Aug 2026
- detected Ubuntu Jul 2026