What powers tvarg.cz?
Last seen Sep 2026 · 20 technologies across 14 categories
Analytics
Authentication
Ecommerce
Font scripts
Issue trackers
JavaScript libraries
Miscellaneous
Performance
Programming languages
Tag managers
UI frameworks
Web frameworks
Web servers
Webmail
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
Content Signals:
search=yes ai-train=no declared in robots.txt
- Sep 2026 Content Signals changed
AI Crawlers
No AI crawlers blocked
Standards: Content Signals
Audience
- 74% phone
- 26% desktop
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.72 / 10 · ranked #2,138,746 of all domains
19 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.8 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 4.6 MB · 56 requests
- Structured data: Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on SHOPTET (185.184.254.10)
- DNS: websupport.cz
- Email: Microsoft 365
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: ZeroSSL, ECDSA P384, expires Nov 2026
- Common Crawl link graph: rank 19,369,968, 2 hosts
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
- dropped Cart Functionality Sep 2026
- dropped Amazon ALB May 2026
- dropped Amazon Web Services May 2026
- dropped Google Cloud May 2026
- dropped Google Cloud CDN May 2026
- dropped GSAP May 2026
- dropped HSTS May 2026
- dropped Lodash May 2026
- detected OpenResty May 2026
- dropped React May 2026
- dropped RequireJS May 2026
- dropped Wix May 2026
- dropped Wix eCommerce May 2026
- detected Cart Functionality Apr 2026
- detected core-js Apr 2026
- detected Facebook Login Apr 2026
- detected Facebook Pixel Apr 2026
- detected Google Analytics Apr 2026
- detected Google Tag Manager Apr 2026
- detected jQuery Apr 2026
- detected jQuery UI Apr 2026
- detected Microsoft Clarity Apr 2026
- detected Nette Framework Apr 2026
- detected Nginx Apr 2026
- detected PHP Apr 2026
- detected Shoptet Apr 2026
- detected Typekit Apr 2026