What powers retap.cz?
Last seen Oct 2026 · 11 technologies across 8 categories
Analytics
Google Analytics
since Jan 2021
CDN
Google Hosted Libraries
since Mar 2022
jsDelivr
since Jan 2023
Cookie compliance
Font scripts
Google Font API
since Jan 2021
JavaScript libraries
Miscellaneous
Programming languages
PHP
since Dec 2021
Web servers
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
2.40 / 10 · ranked #2,682,354 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Czech
- Weight: 3.0 MB · 85 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Retap
- Founded: 1992
- Country: Czech Republic
From Wikidata (CC0).
Infrastructure
- Hosted on Websupport (37.9.175.205)
- DNS: forpsi.cz
- Email: forpsi.com
- Email security: SPF (soft fail), no DMARC record, DNSSEC signed
- Common Crawl link graph: rank 25,320,829
DNS records as swept Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection