What powers fathers.cz?

Last seen Sep 2026 · 13 technologies across 10 categories

Analytics

Google Analytics
since Sep 2022
Microsoft Clarity
since Sep 2026

CDN

Amazon CloudFront
since Apr 2026
Amazon S3
since Apr 2026

Cookie compliance

Cookie Script
since Apr 2026

Issue trackers

Sentry
since Apr 2026

JavaScript frameworks

Svelte
since Apr 2026

Miscellaneous

HTTP/3
since Apr 2026
Open Graph
since Sep 2022

PaaS

Amazon Web Services
since Feb 2026

Performance

Priority Hints
since Aug 2023

Security

HSTS
since Dec 2022

UI frameworks

Tailwind CSS
since Apr 2026

AI Crawlers

Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.

Training crawlers

  • Bytespider Allowed
  • ClaudeBot Allowed
  • Google-Extended Allowed
  • GPTBot Allowed

Search and AI assistants

  • Applebot Allowed
  • PerplexityBot Allowed

The other 27 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.

  • 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

  • 54% phone
  • 46% desktop
  • Czechia
  • Poland

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

Open Page Rank

3.17 / 10 · ranked #1,315,131 of all domains

23 referring domains · OpenPageRank

Core Web Vitals

LCP0.8 s
INP100 ms
CLS0
TTFB200 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: English
  • CDN: Amazon CloudFront
  • Weight: 40.0 MB · 90 requests
  • Structured data: JSON-LD, OpenGraph, Twitter Cards

Homepage as crawled by the HTTP Archive, Sep 2026.

Infrastructure

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

Full technology history →
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