Check an IP or Domain Against the Roskomnadzor Blocklist
Check if a domain or IP is blocked by Roskomnadzor in Russia
Roskomnadzor Check tells you whether a site/IP is blocked by Russia's Roskomnadzor. Looks up the official zapret-info registry. Shows the legal basis + date. Critical for RU businesses before launching new sites.
Why teams trust us
How it works
Enter domain or IP
Check RKN registry
Get status and reason
Why check for RKN blocking?
Roskomnadzor maintains a registry of blocked sites. If your domain or IP is in the registry, Russian users won't be able to access the site. The check shows status and reason.
RKN Registry
Direct query to the prohibited sites registry — domain, URL, or IP.
RKN DNS Check
Simulate queries via provider DNS (Rostelecom, MTS, SkyDNS).
IP Blocking
Check if your hosting IP address or subnet is in the registry.
Reason and Number
If blocked, show decision number, date, and legal basis.
Who uses this
Business
Russia accessibility check
DevOps
hosting IP control
Developers
new hosting verification
SEO
site visibility monitoring
Common Mistakes
Best Practices
Monitor availability in Russia
HTTP monitor from Moscow — be first to know about blocking.
Sign up freeRKN Blocklist Checker — Is Your Domain Blocked in Russia?
Roskomnadzor (RKN) is Russia's federal telecommunications regulator responsible for maintaining the national blocklist (EAIS). Domains, IPs, and URLs can be added to the registry by court order, at the request of authorities, or automatically. ISPs in Russia are legally required to block all entries.
This tool checks your domain against Russia's official blocklist (Roskomnadzor EAIS) using public registry exports together with extended operator blocklists, verifies DNS resolution through three Russian ISP resolvers (Rostelecom, MTS, SkyDNS) to detect provider-level DNS substitution, shows the IP geolocation (ISP, ASN, country), and performs an HTTP probe from our Russia-based server. The authoritative registry is published at eais.rkn.gov.ru.
If your domain is blocked, you can request delisting through the official EAIS portal or through your hosting provider. Common reasons for blocking include copyright violations, prohibited content, and regulatory non-compliance.
Legal notice. This is an informational, diagnostic service for resource owners to check whether their own domain or IP is listed in the public Roskomnadzor registry (EAIS). It surfaces publicly available registry data and does not provide, recommend, or facilitate any means of bypassing or circumventing access restrictions.
After checking RKN status, you can also verify your DNS records with our DNS Lookup tool, check your SSL certificate with the SSL Checker, or run a full DNSBL spam blacklist check.
Want a weekly re-check of this?
Drop your email — we will re-run this check every 7 days and write to you only if the result comes back worse than the one before it. Free.
One-click unsubscribe in every email. We never share email addresses. By subscribing you agree to our privacy policy.
Learn more
Frequently Asked Questions
What does the RKN checker do?
Checks if a domain or IP is in the Roskomnadzor block registry. Relevant for the Russian internet segment.
Is the RKN check free?
Yes, completely free with no registration required.
Related guides
Longer-form reading on this topic from the knowledge base.
Monitor DNS automatically
Add your domain to enterno.io — we check every record every minute and ping Telegram on any change.