Website uptime monitoring that tells you first
We visit your website every minute, day and night. The moment it stops answering, answers with an error or slows to a crawl, you hear about it on your phone.
Set up in under a minute
Add your address
Type your website's address, such as https://example.com/. We check it straight away so you can see it working.
We keep visiting
Every minute on Pro, every 5 minutes on Free. Each visit records whether it answered and how fast.
You hear when it matters
Two failed checks in a row and we alert you. When it's back, we tell you how long it was down.
What counts as down
- It doesn't answer within 15 seconds, or we can't connect at all
- It answers with a server error, such as 500, 502 or 503
- Its security certificate is broken, so visitors would see a warning
- It's slower than a limit you choose, from half a second to 15 seconds
- Optional: it doesn't answer with the exact status code you expect
Good to know
How often do you check my website?
Every minute on Pro and every 5 minutes on the free plan. You can choose to check less often, up to once an hour.
Why do you wait for two failed checks?
A single slow answer or network blip happens to every website now and then. Waiting for a second failed check means you're only woken up for real problems.
Where do the checks come from?
From Cloudflare's worldwide network. If a firewall or security plugin on your site blocks unknown visitors, let Site Patrol through so it doesn't look down.
What does uptime mean?
The share of our checks that found your website working. 99.9% over 30 days means it was down for about 43 minutes in that month.
Works well with
Keyword monitoring
Words that must be on the page, or must never be, so a broken page can't hide.
Find out moreSSL certificate monitoring
Warned weeks before it runs out, and straight away if it breaks.
Find out moreWebsite down alerts
On your phone, computer, email, Slack, Teams, Google Chat, Discord or a webhook.
Find out morePut Site Patrol on watch
Free for one website, live in under 60 seconds. We start watching the moment you add your URL.
Start free