What powers slovnicek.cz?
Last seen Sep 2026 · 16 technologies across 13 categories
Advertising
Google AdSense
since Jan 2019
Analytics
Cloudflare Browser Insights
since Jul 2026
CDN
Cloudflare
since Dec 2024
Cookie compliance
Cookie Script
since Dec 2024
Funding Choices
since Dec 2022
Font scripts
Google Font API
since Nov 2025
JavaScript libraries
Miscellaneous
HTTP/3
since Jul 2026
Performance
Priority Hints
since Sep 2026
Programming languages
PHP
since Jan 2019
Security
Tag managers
Google Tag Manager
since Oct 2020
UI frameworks
Web frameworks
AI Crawlers
robots.txt could not be read at the last check (Sep 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
- 91% phone
- 7% desktop
- 2% tablet
Czechia
Germany
Croatia
Poland
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.43 / 10 · ranked #2,622,614 of all domains
10 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.8 s |
| INP | 200 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 2.0 MB · 111 requests
- Structured data: JSON-LD
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on Cloudflare (104.21.56.49, IPv6)
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: Google Trust Services, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 32,798,079
DNS records as swept Aug 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected Priority Hints Sep 2026
- dropped Apache HTTP Server Aug 2026
- dropped Debian Aug 2026
- detected Cloudflare Jul 2026
- detected Cloudflare Browser Insights Jul 2026
- detected HSTS Jul 2026
- detected HTTP/3 Jul 2026
- detected Google Font API Nov 2025