What powers olc.cz?
Last seen Jul 2026 · 29 technologies across 19 categories
Analytics
Google Analytics
since May 2024
CDN
jQuery CDN
since Sep 2022
CMS
WordPress
since Sep 2022
Comment systems
Livefyre
since Sep 2022
Databases
MySQL
since Sep 2022
Font scripts
Google Font API
since Sep 2022
Twitter Emoji (Twemoji)
since Sep 2022
Issue trackers
Redmine
since Sep 2022
JavaScript frameworks
Svelte
since Jun 2024
JavaScript libraries
Maps
Leaflet
since Sep 2022
Miscellaneous
Programming languages
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since May 2024
UI frameworks
Tailwind CSS
since Apr 2026
Web frameworks
Django
since Apr 2026
Ruby on Rails
since Sep 2022
Web servers
Apache HTTP Server
since Sep 2022
Webmail
Microsoft 365
since Sep 2022
WordPress plugins
AI Crawlers
Blocks all crawlers by default in robots.txt (User-agent: *). Checked Aug 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
AI Crawlers
All crawlers blocked
Audience
- 100% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.96 / 10 · ranked #1,655,867 of all domains
12 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.9 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Subdomains
| Host | Techs |
|---|---|
| www.olc.cz | 20 |
| projects.olc.cz | 8 |
| klic-sd.olc.cz | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Twitter Emoji (Twemoji) Mar 2026