What powers janaslav.cz?
Last seen Oct 2026 · 27 technologies across 13 categories
Analytics
Google Analytics
since Jul 2026
Snowplow Analytics
since Mar 2024
Caching
Endurance Page Cache
since Nov 2022
WordPress Super Cache
since Jul 2026
CMS
Databases
MySQL
since Nov 2022
Font scripts
Google Font API
since Jul 2026
Twitter Emoji (Twemoji)
since Jul 2026
JavaScript libraries
Miscellaneous
Page builders
WordPress Block Editor
since Jul 2024
Performance
LazySizes
since Jul 2026
Priority Hints
since Aug 2023
Programming languages
PHP
since Nov 2022
Tag managers
Google Tag Manager
since Jul 2026
WordPress plugins
WordPress themes
GeneratePress
since Nov 2022
AI Crawlers
robots.txt could not be read at the last check (Oct 2026), so its policy is unknown.
- robots.txt not checked
- llms.txt not checked
- ai.txt not checked
AI Crawlers
Policy unknown
Audience
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.14 / 10 · ranked #3,227,906 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.6 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 4200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Czech (Czechia)
- Weight: 1.0 MB · 62 requests
- WordPress theme: generatepress · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on INTERNET-CZ Ktis 2, 384 03 Ktis (185.129.138.203)
- DNS: forpsi.cz
- Email: forpsi.com
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- Common Crawl link graph: rank 6,946,089, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped Animate.css Aug 2026
- dropped WP Rocket Aug 2026
- detected Autoptimize Jul 2026
- detected Complianz Jul 2026
- detected core-js Jul 2026
- detected Google Analytics Jul 2026
- detected Google Font API Jul 2026
- detected Google Tag Manager Jul 2026
- detected jQuery Jul 2026
- detected jQuery Migrate Jul 2026
- detected LazySizes Jul 2026
- detected Snowplow Analytics Jul 2026
- detected Twitter Emoji (Twemoji) Jul 2026
- detected Underscore.js Jul 2026
- detected WordPress Super Cache Jul 2026
- detected GenerateBlocks May 2026
- detected HTTP/3 Apr 2026
- dropped HTTP/3 Jan 2026
- detected Animate.css Dec 2025
- detected GeneratePress Dec 2025
- dropped HSTS Dec 2025