What powers 
kolejzulawska.pl?
Last seen Sep 2026 · 20 technologies across 10 categories
CMS
WordPress
since Apr 2019
Comment systems
Databases
MySQL
since Apr 2019
Font scripts
Google Font API
since Apr 2019
JavaScript frameworks
Backbone.js
since Oct 2021
JavaScript libraries
Underscore.js
since Oct 2021
Maps
Google Maps
since Apr 2019
Miscellaneous
RSS
since Dec 2022
Programming languages
Web servers
Apache HTTP Server
since Apr 2019
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
- 98% phone
- 2% desktop
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.48 / 10 · ranked #916,170 of all domains
33 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.2 s |
| INP | 100 ms |
| CLS | 0.2 |
| TTFB | 700 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Polish (Poland)
- Weight: 1.3 MB · 43 requests
Homepage as crawled by the HTTP Archive, Sep 2026.
Infrastructure
- Hosted on KORBANK-AS Korbank S. A. (212.127.78.220)
- DNS: 42.pl
- Email: racor.pl
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 4096, expires Dec 2026
- Common Crawl link graph: rank 893,717, 2 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted