Free uptime monitoring
We check your site every five minutes, around the clock, from our London server. When it stops answering you get an email within minutes — with the status code, the error and how long it had been up. When it recovers, you get one more. That is the whole product.
- 5-minute checks — not fifteen, and not held back for a paid tier
- Alerts on change only — two emails per incident, never a stream
- A public status page you can send to your team or your client
- 90 days of response-time history
- No card, no trial, no expiry — three sites per email address
We ask for an email address because that is where alerts go. It is used for nothing else, and every alert carries a one-click removal link. See the privacy notice.
How it works
Add your URL
Enter the address and where alerts should go. Confirm by email so nobody can sign you up.
We check every 5 minutes
A real HTTP request from London. We record the status code and response time on every check.
Two failures, then an alert
One failed check can be a blip. We confirm with a second before emailing, so alerts stay meaningful.
You get the recovery too
When the site answers again we email once more, with the length of the outage.
What counts as "down"
A monitor fails a check when the request produces no usable response: DNS does not resolve, the connection is refused or times out, TLS fails, or the server returns a 5xx error. A 4xx response is treated as up — the server is working and answering, it simply does not like that particular request — with one exception: if your URL starts returning 404 where it previously returned 200, that is a change worth knowing about and we say so in the dashboard.
Why five minutes, and not one
Minute-level checking sounds better and mostly is not. It multiplies load on your server, and because a single failed check is never enough to act on, an honest alert still needs a second confirmation — so the real difference between one-minute and five-minute monitoring is a few minutes of notice, in exchange for five times the traffic. Five minutes with confirmation is the sensible free default. If you genuinely need sub-minute detection, you need a paid, multi-region service, and we would rather say so than pretend otherwise.
What we do not do
No SMS, no phone calls, no escalation policies, no SLA. This is a free tool built to answer one question well: is the site up, and when did that change? If you need on-call rotas and incident management, buy a product designed for it.
Your data
We store the URL, your email address, and the result of each check. Nothing else, no tracking cookies, no third-party analytics on your status page. Delete the monitor and the record and its history are removed immediately.