Simple website check
Enter a website. We’ll show where recent checks found trouble—and where there is not enough information yet.
A failed check can have ordinary causes. We look for repeated patterns and never treat missing data as proof that a site works everywhere.
The big picture
Some countries filter websites at their borders. Others place controls inside local networks or can separate domestic services from the wider internet. Results can change by city, provider, and time.
China
The world's best-known national filtering system.
China filters traffic moving between domestic networks and the wider internet. The system can affect website lookups, secure connections, and network addresses, but results still vary by provider and location.
Explore ChinaRussia
Provider-level controls coordinated across a national network.
Russia's Sovereign RuNet is a wider legal and network-control framework, not one single firewall. Providers use filtering equipment that can be directed centrally to restrict particular services.
Explore RussiaIran
Domestic infrastructure combined with tightly controlled global access.
Iran combines internet filtering with the National Information Network, a large domestic network designed to keep local services operating with controlled access to the wider internet.
Explore IranAlso watching
Website restrictions in Türkiye can follow court orders, regulatory decisions, or major events. Availability may differ between services and providers.
→ Pakistan Pakistan's network controlsPakistan uses legal orders and network controls that can restrict websites, platforms, or whole categories of service.
→ Myanmar Myanmar's military internet controlsMyanmar's military authorities have used platform blocks, filtering, and broad connectivity shutdowns. Conditions can change suddenly and differ by network.
→ India India's fragmented filtering and shutdownsIndia's internet controls are fragmented across legal orders, provider filtering, and regional shutdowns rather than one national firewall.
→Latest reports
How it works
We keep the complicated parts behind the scenes, while showing the location, freshness, and limits that help you trust each result.
Recent tests show whether a website works normally in different places.
One failure may be a glitch. Repeated trouble across checks matters more.
You see what we found, where we found it, and when the answer is uncertain.