What powers 
crew.cz?
Last seen Aug 2026 · 28 technologies across 13 categories
Advertising
Analytics
CDN
Font scripts
JavaScript libraries
Miscellaneous
Programming languages
Security
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
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
- Sep 2026 *: Allowed (was Restricted)
- Aug 2026 *: Restricted (was Allowed)
- Aug 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
- 72% phone
- 26% desktop
- 2% tablet
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.74 / 10 · ranked #287,112 of all domains
142 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 100 ms |
| CLS | 0.25 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.6 MB · 60 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Nakladatelství Crew
- Founded: 2006
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on CASABLANCA-AS Internet & Collocation Provider (109.123.203.53)
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 772,719, 13 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.obchod.crew.cz | 18 |
| old.crew.cz | 12 |
| crew.cz | 11 |
| www.crew.cz | 11 |
Full technology history →
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Recent changes
- detected Reddit Ads Jul 2026
- detected TikTok Pixel Mar 2026
- detected Microsoft Advertising Nov 2025