ServerWatch diagnoses the real cause — ISP block, DPI filter, DNS issue, local firewall, or actual server downtime. Layer by layer, in seconds.
Most tools tell you a site is down. ServerWatch tells you why — and whether it's your network, your ISP, or the server itself.
Checks DNS, TCP/TLS connection, and HTTP response separately. You see exactly which layer failed and why — not just a generic "unavailable".
Cross-checks with external nodes worldwide. If your connection fails but the site is globally reachable — it's a local block, not a server issue.
Add your own servers and ports. ServerWatch checks them on a schedule and sends a notification the moment a status changes.
Open ServerWatch on any page. It automatically reads the current site's host — no copy-pasting needed.
DNS via DoH, direct TCP/TLS probe, and cross-check from external nodes around the world — all in a few seconds.
A clear result with a full layer breakdown. Know whether it's your ISP, a firewall, a certificate issue, or the server itself.
No technical jargon. Each result is written in plain language — with technical details available for those who need them.
The interface automatically matches your browser language.
Questions, feedback, or business inquiries — fill in the form and we'll get back to you.
Free, no account required. Works on any site, any server, any port.
Add to Chrome — it's free