Block Checker: Is Site Blocked Live

Block Checker — find out in seconds whether a website is blocked, which registry restricts it, and how DNS servers around the world respond to the domain. A website will not load and you do not know why? It could be government censorship, an ISP-level restriction, a DNS failure, or an outage on the site itself. Block Checker gives you a clear answer instead of guesswork. What you get: • Blocked sites catalog — browse up-to-date registries of restricted domains, with instant search and content-type filters. • DNS checker — query five public DNS providers (Google, Cloudflare, Quad9, NextDNS, AdGuard) over encrypted DNS over HTTPS and compare blocking status, resolved IP addresses, and response time for each server. • Domain lookup — enter any domain or URL and instantly see its current accessibility status. • Censorship statistics — the total number of restricted domains, a breakdown by category and registry, and the date of the latest database sync. • Clean, modern interface — fast, lightweight, and with full dark mode support. Who is it for: • webmasters and site owners monitoring the availability of their projects; • network administrators and IT professionals diagnosing DNS issues; • journalists and researchers tracking internet censorship trends; • everyday users who simply want to know why a site is down. Please note: Block Checker is an information tool. It is not a VPN, it does not unblock websites, and it does not change your device settings. It only shows publicly available data about domain status. Stop guessing whether a site is down for everyone or just for you. Run a website block test, check a domain against restriction registries, use the built-in DNS lookup, and follow internet censorship trends — all in one free app. Questions or feedback? Reach us from the Settings screen inside the app — we read every message.