What powers finnsub.cz?
Last seen Aug 2026 · 10 technologies across 10 categories
JavaScript frameworks
Vue.js
since Jul 2026
Miscellaneous
Open Graph
since Jul 2026
Operating systems
AlmaLinux
since Jul 2026
Programming languages
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Oct 2020
Web frameworks
Web server extensions
Web servers
Webmail
Google Workspace
since Aug 2022
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 85% desktop
- 15% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.74 / 10 · ranked #2,098,628 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 1.4 MB · 13 requests
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (89.185.237.210)
- DNS: ignum.com
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 7,462,585
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Google Analytics Aug 2026
- dropped jQuery Aug 2026
- dropped Modernizr Aug 2026
- detected AlmaLinux Jul 2026
- detected Apache HTTP Server Jul 2026
- detected Nette Framework Jul 2026
- detected Open Graph Jul 2026
- detected OpenSSL Jul 2026
- detected PHP Jul 2026
- detected Vue.js Jul 2026