Is it blocked in Russia?
Enter a site, an IP address or IP:port. We open it through home internet connections in Russian regions and from our server outside Russia, and show where an answer comes back.
Home internet, not a datacenter
Every request goes out through a residential connection of an ordinary Russian internet provider — the same kind of line a home computer uses — in regions from Moscow to Vladivostok. Each row shows the region, the IP address the request left from and its provider. Mobile networks with their whitelists are not used.
A website or an IP and port
“Website · GET” opens the page like a browser: a TLS handshake with the site’s name and a real GET request with the headers of Chrome, Safari, YandexBot or Googlebot. It shows blocks by site name (DPI on the TLS handshake) and the block pages providers put in place of a site. “IP and port · TCP” opens a plain TCP connection and shows blocks by IP address — the right test for a VPN, proxy or game server.
Compared with a server outside Russia
The same request goes out at the same time from our own server outside Russia. If it answers there but not in Russia, the site or address is blocked. If it answers nowhere, the server is simply down. A redirect to a provider’s page, a block page or a substituted certificate counts as a block when our server does not get the same.
Why regions can differ
Blocking in Russia runs on filtering equipment installed at every provider (TSPU), and providers do not always filter the same things at the same time. A site can be blocked by one provider and open through another, or only slowed down. That is why the check runs from several regions through different providers and names each of them.
Frequently asked questions
How are sites blocked in Russia?
Roskomnadzor keeps a registry of banned sites and addresses, and providers enforce it with filtering equipment (TSPU). It drops connections to listed IP addresses, cuts the TLS handshake when it sees a banned site name, shows a block page instead of the site or slows the traffic down.
Where does the blocklist come from?
From the open database of blockedin.org: more than a million domains and hundreds of thousands of IP addresses blocked in Russia, added to every day. We refresh our copy several times a day. A site can be restricted without being listed, and a listed one may still open through some providers — that is what the live check from the regions shows.
What counts as “blocked” here?
A region counts as blocked when no answer comes back — a time-out, a connection cut during TLS or HTTP, an unreachable address — or when the provider answers instead of the site, while our server outside Russia gets a normal answer. Any real answer from the site, even an error page or a redirect, counts as reachable.
Is this an ICMP ping?
No. The requests go through home connections in Russia, and those carry TCP only. A TCP connection is the more honest test anyway: blocks are applied to connections, and many servers do not answer ICMP at all.
Can I check my VPN or proxy server?
Yes. Choose “IP and port · TCP” and enter the server’s address with its port, for example 203.0.113.10:443. If it answers from outside Russia but not from the regions, the address is blocked.
Is it the same as mobile internet in Russia?
No. During restrictions, mobile networks in some regions let through only whitelisted sites. This check uses home (wired) internet, the way a computer at home goes online.
Do you keep what I check?
No. The site or address you enter is used for the check only. It is not logged and not stored.