The is-down tool checks any public URL from an outside vantage point and tells you if the problem is you or the site itself.
Quick answer
The is-down tool is a free public probe. Paste any URL and Lemwatch fetches it from an outside server, returning HTTP status, response time, and DNS resolution.
What it checks
HTTP status code and redirect chain
DNS resolution (A / AAAA / CNAME)
TLS handshake and SSL validity
Response time from a single region
Where to find it in Lemwatch
/is-down or /is-down/<domain> — no login required.
When to use it
A visitor reports "site down" but it works for you
You want a fast neutral opinion before opening a ticket
You need a shareable link proving the outage
FAQ
Does the tool retry?
Single probe by default. Refresh for a fresh check.
Can I monitor continuously?
Yes — sign up and add the site for scheduled uptime checks.