What powers zerkow.pl?
Last seen Sep 2026 · 36 technologies across 19 categories
Analytics
Authentication
CDN
CMS
Databases
Font scripts
JavaScript frameworks
JavaScript libraries
Maps
Miscellaneous
Operating systems
Performance
Programming languages
Security
UI frameworks
Web frameworks
Web servers
WordPress plugins
WordPress themes
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 found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
Poland
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.93 / 10 · ranked #1,721,782 of all domains
25 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Polish (Poland)
- Weight: 1.7 MB · 105 requests
- WordPress theme: astra · all themes
- Structured data: JSON-LD, Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- OKiR MCT (Żerków on Wikidata)
- Country: Poland
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on PL-BEYOND-AS (185.49.148.193)
- DNS: i.media.pl
- Email: zerkow.pl
- Email security: SPF (soft fail), no DMARC record
- SSL: Certum, RSA 4096, wildcard, expires Mar 2027
- Common Crawl link graph: rank 1,297,067, 9 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| mct.zerkow.pl | 25 |
| zerkow.pl | 12 |
| www.zerkow.pl | 10 |
| bip.zerkow.pl | 7 |
| www.mct.zerkow.pl | 7 |
Full technology history →
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