What powers 
i.cz?
Last seen Oct 2026 · 26 technologies across 16 categories
Blogs
Caching
WP Rocket
since Nov 2022
CDN
Databases
MySQL
since Nov 2022
Font scripts
Google Font API
since Nov 2022
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2022
RSS
since Dec 2022
Operating systems
Debian
since Nov 2022
Page builders
Performance
Priority Hints
since Dec 2023
Programming languages
SEO
RankMath SEO
since Nov 2022
Tag managers
Google Tag Manager
since Nov 2022
UI frameworks
Web server extensions
Web servers
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 100% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.99 / 10 · ranked #576,014 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 50 ms |
| CLS | 0.05 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- Weight: 0.1 MB · 9 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- ICZ
- Founded: 1997
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Registered Feb 1998 (28 years) via Media4Web s.r.o, renews Oct 2027
- Hosted on ICZAS-CZ ICZ a.s. (78.31.26.115)
- DNS: i.cz
- Email: i.cz
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Alpiro s.r.o., RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 1,217,788, 17 hosts
- Verified with: Atlassian, Cisco, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| kariera.i.cz | 19 |
| asdpvp.i.cz | 9 |
| sdweb.i.cz | 1 |