What powers 4f.com.pl?

Last seen Sep 2026 · 53 technologies across 22 categories

Accessibility

EqualWeb
since Jul 2025
Nagich v5.1.13
since Jul 2025

Advertising

AppNexus
since Jan 2024
Criteo
since Jun 2018
Microsoft Advertising
since Feb 2021

Analytics

Crazy Egg
since Apr 2025
Facebook Pixel v2.9.397
since Jul 2021
Google Analytics
since Jun 2018
Heap
since Jun 2018
Hotjar
since Jul 2018
Matomo Analytics
since Jul 2018
New Relic
since Jul 2018
Pinterest Conversion Tag
since Apr 2023
TikTok Pixel
since Jul 2022
TrackJs
since Jun 2018

CDN

Amazon S3
since Sep 2026
Cloudflare
since May 2017

Cookie compliance

Cookiebot v1
since Aug 2020

Databases

MySQL
since Jan 2019

Ecommerce

Magento v2
since Jul 2018

Ecommerce frontends

PWA Studio
since Apr 2022

Font Scripts

Font Awesome
since Jul 2018
Google Font API
since Feb 2018

JavaScript Frameworks

AngularJS v1.6.4
since Jun 2017
FancyBox v2.1.5
since Jun 2018
Modernizr v2.8.3
since Jun 2018
React v18.2.0
since Jul 2021
RequireJS v2.1.11
since Jul 2018

JavaScript libraries

core-js v3.29.1
since Sep 2021
jQuery v1.8.3
since May 2017
jQuery Migrate v1.4.1
since Jul 2018
jQuery UI v1.10.4
since Jun 2018
Moment.js
since Jul 2018
Slick
since Jul 2018
Underscore.js v1.8.2
since Jul 2018

Marketing automation

PushPushGo
since Feb 2022

Miscellaneous

Azure Edge Network
since Jul 2023
HTTP/3
since Sep 2026
Open Graph
since Sep 2022
PWA
since Aug 2022
Webpack
since Jan 2022

PaaS

Amazon Web Services
since Apr 2023

Performance

Priority Hints
since Sep 2024

Programming languages

Node.js
since Oct 2025
PHP
since Jul 2018

Security

HSTS
since Sep 2022

Tag managers

Google Tag Manager
since May 2017

UI frameworks

Bootstrap
since Jun 2018
Tailwind CSS
since Oct 2025

Video players

YouTube
since Jul 2018

Web frameworks

Express
since Oct 2025

Widgets

Facebook
since Jun 2018

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 Oct 2026.

  • Sep 2026 llms.txt appeared

See who blocks each AI crawler across the web

Top search keywords

KeywordPositionEst. monthly visits
mistrzostwa wiata w siatkwce 2025 #3 11
mistrzostwa wiata w siatkwce #4 7
4f to c #83 5
skoki narciarskie #68 4
koszulka do biegania #3 4
siatkwka mczyzn mistrzostwa wiata #3 3
spodnie trekkingowe mskie #5 3
wiczenia na poladki #5 2
strj kpielowy #6 2
stroje kpielowe dla dziewczynek #5 2
polska koszulka #4 2
koszulki reprezentacji polski #7 2
mistrzostwa wiata w siatkwce mczyzn #8 2
mistrzostwa wiata w siatkwce kobiet #9 2
gogle narciarskie #5 2
bawena #6 1
wiczenia na paski brzuch #6 1
buty do biegania #12 1
turfy #39 1
under armour charged valsetz #54 1
saszetka mska #8 1
sklepy sportowe #13 1
sklepy odzieowe #61 1
sklepy odziezowe #52 1
plecaki mskie #6 1

The site's top keywords in Google (US), with the visits each one is estimated to bring per month.

Top backlinks

Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.

AI Crawlers

No AI crawlers blocked

Standards: llms.txt

Full breakdown

Audience

  • 91% phone
  • 9% desktop
  • Poland
  • Germany
  • United Kingdom
  • India
  • Italy
  • Croatia

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

Open Page Rank

5.70 / 10 · ranked #136,982 of all domains

179 referring domains · OpenPageRank

Search traffic

71 est. monthly organic visits (US)

202 keywords in Google's top 30

Core Web Vitals

LCP6.3 s
INP525 ms
CLS0.2
TTFB700 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: Polish (Poland)
  • CDN: Akamai
  • Weight: 9.7 MB · 232 requests

Homepage as crawled by the HTTP Archive, Sep 2026.

Organisation

  • 4F

From the homepage's own structured data (Sep 2026).

Infrastructure

  • Registered Dec 2005 (20 years) via OVH SAS, renews Dec 2026
  • Hosted on Akamai (23.206.172.54, IPv6)
  • DNS: Akamai Edge DNS
  • Email: otcf.pl
  • Email security: SPF (soft fail), DMARC monitor only
  • SSL: Let's Encrypt, RSA 2048, expires Nov 2026
  • Common Crawl link graph: rank 498,632, 4 hosts
  • Verified with: Google, OpenAI, Yahoo

DNS records as swept Oct 2026, certificate as seen Oct 2026, registration from the registry's RDAP service. How the web is hosted

Subdomains

HostTechs
4f.com.pl 31
www.4f.com.pl 27

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