What powers osfis.pl?

Last seen Aug 2026 · 13 technologies across 11 categories

CMS

WordPress v7.0.3
since May 2023

Databases

MySQL
since May 2023

Font scripts

Google Font API
since May 2023

JavaScript libraries

Splide
since Oct 2025

Miscellaneous

HTTP/3
since Jul 2023
Open Graph
since May 2023
RSS
since May 2023

Page builders

Bricks
since Oct 2025

Performance

Priority Hints
since Oct 2025

Programming languages

PHP
since May 2023

SEO

Yoast SEO v27.4
since May 2023

Web servers

LiteSpeed
since Jul 2023

WordPress plugins

Complianz v7.4.3
since Feb 2026

AI Crawlers

Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Aug 2026.

  • robots.txt found
  • llms.txt not found
  • ai.txt not found

See who blocks each AI crawler across the web

AI Crawlers

No AI crawlers blocked

Full breakdown

Audience

  • Poland

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

2.40 / 10 · ranked #2,682,570 of all domains

12 referring domains · OpenPageRank

Core Web Vitals

LCP2.1 s
INP50 ms
CLS0
TTFB1500 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Polish (Poland)
  • Weight: 1.9 MB · 31 requests
  • WordPress theme: bricks · all themes
  • Structured data: JSON-LD, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

  • DNS: jchost15.pl
  • Email: no MX record returned, SPF names Google Workspace
  • Email security: SPF (soft fail), DMARC monitor only
  • SSL: Let's Encrypt, ECDSA P384, expires Dec 2026
  • Common Crawl link graph: rank 31,477,008, 2 hosts
  • Verified with: Google

DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted

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