What powers centrumnaukikeplera.pl?
Last seen Sep 2026 · 26 technologies across 14 categories
Analytics
Matomo Analytics
since Jun 2024
CMS
WordPress
since May 2019
Databases
MySQL
since May 2019
Font scripts
Google Font API
since May 2019
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Nov 2023
RSS
since Dec 2022
Page builders
WordPress Block Editor
since Jul 2024
Programming languages
PHP
since May 2019
Security
UI frameworks
Web servers
Nginx
since May 2019
Widgets
WordPress plugins
Contact Form 7
since Jun 2024
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
- Sep 2026 robots.txt appeared
AI Crawlers
No AI crawlers blocked
Audience
- 92% phone
- 8% desktop
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.04 / 10 · ranked #1,518,581 of all domains
16 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.7 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Polish (Poland)
- Weight: 2.6 MB · 51 requests
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on ZIELMAN-EDU-AS Metropolitan Network ZielMAN (212.109.143.239)
- Email: no MX record returned
- Email security: SPF (hard fail), DMARC reject
- SSL: Certum, RSA 4096, expires Feb 2027
- Common Crawl link graph: rank 3,617,722, 3 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.centrumnaukikeplera.pl | 20 |
| bilety.centrumnaukikeplera.pl | 10 |