What powers 
grandmark.cz?
Last seen Sep 2026 · 30 technologies across 15 categories
Analytics
CDN
Font scripts
JavaScript frameworks
JavaScript libraries
Miscellaneous
Operating systems
PaaS
Performance
Programming languages
Security
Tag managers
UI 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 Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 66% phone
- 34% desktop
United States
Czechia
Germany
Israel
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.74 / 10 · ranked #744,833 of all domains
42 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Vercel
- Weight: 9.8 MB · 54 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- The Grand Mark Prague
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (216.150.1.1)
- DNS: OVHcloud
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 11,327,065, 4 hosts
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.grandmark.cz | 21 |
| cz.grandmark.cz | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Adform Mar 2026
- dropped AppNexus Mar 2026
- dropped cdnjs Mar 2026
- dropped Cloudflare Mar 2026
- dropped core-js Mar 2026
- dropped Facebook Pixel Mar 2026
- dropped Microsoft Advertising Mar 2026
- detected Amazon S3 Feb 2026
- detected Amazon Web Services Feb 2026
- detected Apollo Feb 2026
- detected GraphQL Feb 2026
- detected HSTS Feb 2026
- detected Next.js Feb 2026
- detected Next.js App Router Feb 2026
- detected Node.js Feb 2026
- detected Priority Hints Feb 2026
- detected PWA Feb 2026
- detected React Feb 2026
- detected reCAPTCHA Feb 2026
- detected Tailwind CSS Feb 2026
- detected TypeScript Feb 2026
- detected Vercel Feb 2026
- detected Webpack Feb 2026