What powers 
jazzport.cz?
Last seen Jun 2026 · 23 technologies across 12 categories
CMS
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Jan 2019
Twitter Emoji (Twemoji)
since Jan 2019
JavaScript frameworks
JavaScript libraries
Miscellaneous
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
Video players
YouTube
since Jul 2024
Web server extensions
Web servers
WordPress plugins
Jetpack
since Mar 2022
Jetpack Boost
since Jul 2024
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
- Aug 2026 *: Allowed (was Restricted)
AI Crawlers
No AI crawlers blocked
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.91 / 10 · ranked #643,660 of all domains
43 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.5 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2500 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 1.1 MB · 47 requests
- WordPress theme: jazzport · all themes
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on GIGASERVER (185.66.36.25)
- DNS: gigaserver.cz
- Email: gigaserver.cz
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed, MTA-STS, BIMI
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 14,859,163, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- detected OpenSSL May 2026
- dropped OpenSSL Jan 2026
- detected Twitter Emoji (Twemoji) Jan 2026