What powers tnv.cz?
Last seen Aug 2026 · 9 technologies across 8 categories
Analytics
Google Analytics
since Dec 2019
Font scripts
Google Font API
since Feb 2020
JavaScript Libraries
Miscellaneous
Operating systems
Windows Server
since Jan 2019
Security
reCAPTCHA
since Dec 2019
Web servers
Webmail
Microsoft 365
since Oct 2025
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Sep 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 86% phone
- 11% desktop
- 3% tablet
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.19 / 10 · ranked #461,283 of all domains
72 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Organisation
- Týn nad Vltavou
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on OPTONET-AS (78.156.158.199)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 1,350,409, 5 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| tnv.cz | 7 |
| www.tnv.cz | 7 |
| m.tnv.cz | 5 |
Full technology history →
Report an incorrect detection
Recent changes
- detected PWA May 2026
- detected Microsoft 365 Oct 2025