What powers zssumperk.cz?
Last seen Oct 2026 · 21 technologies across 13 categories
CDN
cdnjs
since May 2025
Cloudflare
since May 2025
CMS
Databases
MySQL
since Oct 2022
Font scripts
Google Font API
since Oct 2022
JavaScript libraries
Miscellaneous
Open Graph
since Oct 2022
Performance
Priority Hints
since Oct 2026
Programming languages
PHP
since Oct 2022
Security
Cloudflare Bot Management
since Sep 2025
Really Simple SSL & Security
since Apr 2024
reCAPTCHA
since Nov 2023
UI frameworks
Web servers
Apache HTTP Server
since Oct 2022
Webmail
Microsoft 365
since Oct 2022
WordPress plugins
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 bytespider removed from robots.txt
- Sep 2026 *: Restricted (was Allowed)
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.06 / 10 · ranked #3,433,530 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 100 ms |
| CLS | 0 |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech
- Weight: 1.2 MB · 36 requests
- WordPress theme: flatly · all themes
- Structured data: OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on MASTER-AS Czech Republic www.master.cz (185.25.184.194)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 16,385,001
- Verified with: Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted