What powers donumfelix.cz?
Last seen Sep 2026 · 17 technologies across 12 categories
CDN
Google Hosted Libraries
since Aug 2022
CMS
WordPress
since Jul 2019
Databases
MySQL
since Jul 2019
Font scripts
Twitter Emoji (Twemoji)
since Jul 2019
JavaScript libraries
Miscellaneous
RSS
since Dec 2022
Programming languages
PHP
since Jul 2019
Security
Really Simple SSL & Security
since Apr 2024
reCAPTCHA
since Feb 2024
Web server extensions
Web servers
Apache HTTP Server
since Jul 2019
Webmail
Google Workspace
since Aug 2022
WordPress plugins
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
Czechia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.51 / 10 · ranked #2,480,827 of all domains
14 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.1 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 2900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 1.6 MB · 65 requests
- WordPress theme: donum-felix · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on GIGASERVER (185.66.36.114)
- Email: Google Workspace
- Email security: no SPF record, no DMARC record, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, wildcard, expires Nov 2026
- Common Crawl link graph: rank 17,205,481, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Full technology history →
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