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sisyfos.cz

Live
Český klub skeptiků - SisyfosCzechia
Nonprofit & Community

Estimated trafficEstimated from public data and our own crawl of sisyfos.cz.

Est. monthly visits

166K

as of Sep 2026

Est. by device type

Desktop 23%

Mobile 77%

100K200K300K202420252026Oct 2023: about 151K visitsNov 2023: about 154K visitsDec 2023: about 154K visitsJan 2024: about 151K visitsFeb 2024: about 148K visitsMar 2024: about 124K visitsApr 2024: about 128K visitsMay 2024: about 136K visitsJun 2024: about 136K visitsJul 2024: about 130K visitsAug 2024: about 131K visitsSep 2024: about 141K visitsOct 2024: about 143K visitsNov 2024: about 152K visitsDec 2024: about 153K visitsJan 2025: about 156K visitsFeb 2025: about 157K visitsMar 2025: about 152K visitsApr 2025: about 152K visitsMay 2025: about 143K visitsJun 2025: about 143K visitsJul 2025: about 142K visitsAug 2025: about 150K visitsSep 2025: about 149K visitsOct 2025: about 163K visitsNov 2025: about 161K visitsDec 2025: about 147K visitsJan 2026: about 146K visitsFeb 2026: about 146K visitsMar 2026: about 150K visitsApr 2026: about 149K visitsMay 2026: about 153K visitsJun 2026: about 151K visitsJul 2026: about 152K visitsAug 2026: about 158K visitsSep 2026: about 166K visits

Estimated employeesEstimated from public data and our own crawl of sisyfos.cz.

Est. employees

11 to 50

Social profiles

Rankings

Where sisyfos.cz lands by estimated traffic, overall and among the sites we rank in each of its categories.

Detected technologies (10)Detected on sisyfos.cz. Site counts are our own detections across the web.

Compare this stack →
Web Analytics & Measurement
Google Analytics
Google platform measuring website traffic and visitor behavior
49M sites
Google Tag Manager
Tag management system deploying analytics and marketing tags without code
53M sites
Marketing & Email Campaigns
OneSignal
Platform sending push notifications and customer messages
193.9K sites
Hosting & Cloud Providers
Ignum-As Czech Republic
Czech web hosting and domain provider.
199.2K sites
Web Servers & Operating Systems
Apache HTTP Server
Long-established open-source web server software
70.4M sites
Languages & Back-End Frameworks
Nette Framework
PHP web application framework for building sites.
98.9K sites
PHP
Server-side scripting language powering a large share of websites
91.4M sites
Front-End Frameworks & UI Toolkits
PWA
Progressive web app technology enabling installable, offline-capable sites
27.9M sites
SEO & Content Discovery
Open Graph
Metadata protocol controlling how page links preview on social platforms
127.7M sites
other
MailChimp24.5K sites

Infrastructure

Hosting / CDNIgnum-As Czech Republic
Mail (MX)Detected
HTTP status200

Site footprint

Subdomains

Hosts we have seen under sisyfos.cz

1host
We publish the count today, not the list.

Site sections

Aboutdetected

Domain details

LanguageEnglish
CopyrightSisyfos - web běží na systému od Red Peppers

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