What powers jbl.cz?
Last seen Aug 2026 · 21 technologies across 15 categories
Analytics
Cloudflare Browser Insights
since Nov 2025
CDN
Cloudflare
since Mar 2024
Cookie compliance
Cookie Script
since Feb 2026
Development
Turbopack
since Jun 2026
Font scripts
Google Font API
since Apr 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
Performance
Priority Hints
since Jun 2026
Programming languages
Node.js
since Jun 2026
Security
HSTS
since Jun 2026
Tag managers
Google Tag Manager
since Nov 2021
UI frameworks
Tailwind CSS
since Jun 2026
Web servers
Nginx
since Apr 2021
Webmail
Microsoft 365
since Aug 2022
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
AI Crawlers
No AI crawlers blocked
Audience
- 75% phone
- 21% desktop
- 4% tablet
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.57 / 10 · ranked #2,377,839 of all domains
15 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.3 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- CDN: Cloudflare
- Weight: 1.2 MB · 111 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Subdomains
| Host | Techs |
|---|---|
| www.jbl.cz | 17 |
| servis.jbl.cz | 6 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Google Analytics Jul 2026
- dropped jQuery CDN Jul 2026
- dropped Lodash Jul 2026
- dropped Modernizr Jul 2026
- detected Google Tag Manager Jun 2026
- detected HSTS Jun 2026
- detected Next.js Jun 2026
- detected Next.js App Router Jun 2026
- detected Node.js Jun 2026
- detected Priority Hints Jun 2026
- detected Tailwind CSS Jun 2026
- detected Turbopack Jun 2026
- detected Webpack Jun 2026
- dropped Cookiebot Mar 2026
- dropped core-js Mar 2026
- dropped Facebook Pixel Mar 2026
- dropped Google AdSense Mar 2026
- dropped Google Tag Manager Mar 2026
- dropped Microsoft Advertising Mar 2026
- dropped reCAPTCHA Mar 2026
- dropped Snowplow Analytics Mar 2026
- detected Cookie Script Feb 2026
- detected Cloudflare Browser Insights Nov 2025