Know the moment your domains get blocked.
Site Sentinel continuously checks your domains from real ISP vantage points and alerts your team the instant a block appears.
Detection that proxies alone miss
Two engines combined into one clear block verdict per country.
DNS-level blocks
Resolve from real ISP resolvers to catch NXDOMAIN, sinkholes and redirects that a clean resolver never sees.
Live NOC dashboard
A worst-of status board per domain and country, drilling down to each ISP.
Instant alerts
Per-team Telegram and signed webhooks fire the moment a domain is blocked — with retries and auto-disable.
Frequently asked questions
How do you detect a block that proxies don't see?▾
Most blocking is enforced at the ISP DNS resolver. We resolve from real in-country ISP vantage points, so we see NXDOMAIN, sinkholes and redirect pages that a clean public resolver returns cleanly.
Which countries are covered?▾
Coverage expands continuously to Italy, France, Greece, Belgium, Switzerland, Australia, Poland, Germany.
How fast are alerts?▾
Checks are run every 30 minutes; the moment a domain transitions to blocked, your team's Telegram channel and webhook are notified.
Contact Us
Save time, automate monitoring, and get answers—reach out to our team today.