24/7 website availability check

We check if your website is working. 24 hours a day. No installation is needed. Really simple.

Start free monitoring

No credit card required

Uptime check illustration

How does it work

Uptime.onl check url illustration
Add URL you want to check for availability

It might be only an index page just to check if hosting works. Or it might be all your pages to be sure the whole website is working.

Uptime.onl page speed illustration
We will check URL every 1 or 5 minutes

We will check it 24 hours a day. Every day. We will check availability, response time, SSL/TLS certificate expiration, etc.

Uptime.onl notification illustration
If URL is down, we will notify you immediately

We will immediately send you a message. You will be the first to know about a problem.

That's it. Simple.

Start free monitoring

Main features

Dashboard screenshot
Status error illustration

Uptime check by response status

Status error illustration

Website availability check by keyword/phrase

Status error illustration

Show last error in the dashboard

Status error illustration

Notification about response error

Status error illustration

Check server response time

Status error illustration

Check SSL / TLS certificate expiration date

Status error illustration

Check Domain expiration date

Status error illustration

Check for Javascript errors

Status error illustration

Check for broken links

Start free monitoring