What powers mastodonczech.cz?

Last seen Aug 2026 · 7 technologies across 6 categories

JavaScript libraries

core-js v3.49.0
since Jan 2023

Message boards

Mastodon
since Jan 2023

Miscellaneous

Open Graph
since Jan 2023
PWA
since Jan 2023

Security

HSTS
since Jan 2023

Web servers

Nginx
since Apr 2026

Webmail

Google Workspace
since Jan 2023

AI Crawlers

Blocks 1 of 33 AI crawlers we track by name in its robots.txt. Checked Sep 2026.

Training crawlers

  • GPTBot Blocked

The other 32 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

Top search keywords

KeywordPositionEst. monthly visits
maks 23 mastodon #33 0

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

1 of 33 AI crawlers blocked

Full breakdown

Audience

  • 68% phone
  • 32% desktop
  • Czechia

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

Open Page Rank

5.39 / 10 · ranked #173,442 of all domains

130 referring domains · OpenPageRank

Search traffic

0 est. monthly organic visits (US)

1 keywords in Google's top 30

Core Web Vitals

LCP3.6 s
CLS0.05
TTFB400 ms

Real user p75, Chrome UX Report, Aug 2026.

Page

  • Language: English
  • Weight: 2.1 MB · 149 requests
  • Structured data: OpenGraph

Homepage as crawled by the HTTP Archive, Aug 2026.

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