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.

Start monitoring

Monitor a specific page if you like — a health-check URL works well.

One confirmation email, then only alerts. Unsubscribe from any of them.

How it works

1

Add your URL

Enter the address and where alerts should go. Confirm by email so nobody can sign you up.

2

We check every 5 minutes

A real HTTP request from London. We record the status code and response time on every check.

3

Two failures, then an alert

One failed check can be a blip. We confirm with a second before emailing, so alerts stay meaningful.

4

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.