What powers 
nautis.cz?
Last seen Sep 2026 · 46 technologies across 20 categories
Analytics
CDN
CMS
Cookie compliance
Databases
Ecommerce
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Page builders
Performance
Programming languages
UI frameworks
Web server extensions
Web servers
Webmail
WordPress plugins
WordPress themes
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Restricted (was Allowed)
- Aug 2026 *: Allowed (was Restricted)
- Aug 2026 *: Restricted (was Allowed)
AI Crawlers
No AI crawlers blocked
Audience
- 77% phone
- 23% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.76 / 10 · ranked #273,276 of all domains
102 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 0.8 MB · 54 requests
- WordPress theme: astra (child: nautis) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Nautis
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Websupport (37.9.175.212, IPv6)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC quarantine, DNSSEC signed
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 7,772,887, 6 hosts
- Verified with: Apple Business, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| nautis.cz | 28 |
| www.nautis.cz | 25 |
| spc.nautis.cz | 22 |
| www.vzdelavani.nautis.cz | 20 |
| vzdelavani.nautis.cz | 14 |
Full technology history →
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Recent changes
- detected Font Awesome Sep 2026
- detected HTTP/3 Apr 2026
- detected OpenResty Apr 2026
- dropped React Jan 2026
- detected Cart Functionality Dec 2025
- detected Twitter Emoji (Twemoji) Dec 2025
- detected Apple iCloud Mail Nov 2025