What powers waldera.cz?
Last seen Aug 2026 · 15 technologies across 10 categories
Analytics
Ahrefs
since Dec 2023
Google Analytics
since Jan 2019
Font scripts
Google Font API
since Jan 2019
JavaScript frameworks
JavaScript libraries
Live chat
Tawk.to
since Mar 2024
Miscellaneous
Open Graph
since Sep 2022
PWA
since Mar 2024
Operating systems
Ubuntu
since Mar 2024
Programming languages
Node.js
since Mar 2024
TypeScript
since Mar 2024
Web servers
Webmail
Google Workspace
since Aug 2022
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 checked
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Audience
- 87% phone
- 13% desktop
Czechia
Slovakia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.39 / 10 · ranked #1,022,922 of all domains
44 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.1 s |
| INP | 125 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Czech
- Weight: 2.0 MB · 62 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on CETIN-AS (85.163.79.63)
- DNS: ignum.com
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, ECDSA P256, expires Oct 2026
- Common Crawl link graph: rank 17,864,179, 2 hosts
- Verified with: Google, Meta Business
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted