Site Monitor vs UptimeRobot and other uptime monitors: what each one catches

By Bhavesh Narsai at BAV Tech Solutions. Published 23 October 2026.

UptimeRobot, Better Stack and Pingdom are good at one job: telling you, within seconds or minutes, that your website has stopped responding. Site Monitor does a different job. It tells you the day your website is still up but has quietly stopped working.

Side by side

Uptime tool features checked against UptimeRobot, Better Stack and Pingdom's own pricing and product pages on 23 October 2026. Plans change, so check theirs before you decide.

Where uptime tools are better

On their own ground, clearly. They check every 15 seconds to 5 minutes rather than every hour, from several countries at once, so they can tell a real outage from one bad network path. They publish status pages your customers can check, send text messages and phone calls, and run on-call rotas for teams. Most have a free plan. If minutes of downtime cost you money, you want one of these.

What they cannot see

An uptime check asks one question: did the server answer? A site can answer perfectly while the things that bring in enquiries are broken. The usual culprits are a redesign that keeps the phone number on the page but stops it being tappable, a plugin update that strips the structured data Google reads, or a contact form that loses its labels. None of that changes whether the site is up, so no uptime tool will ever tell you.

Some offer partial cover. Keyword monitoring will notice if a phrase disappears from the page, and scripted browser checks on Better Stack and Pingdom can test a form if someone writes and maintains the script. Site Monitor checks those things out of the box, alongside the security basics that go wrong with nobody touching the site: exposed files, a PHP version past its end of life, a certificate that failed to renew.

Which one do you need?

• An uptime monitor if your site is your shop or your product and minutes offline lose sales, or you need a public status page.
• Site Monitor if your site exists to make the phone ring or the enquiries arrive, and the real risk is it quietly stopping doing that after an update. That is most local and small business sites.
• Both if both are true. They do not overlap much, and many uptime tools have a free plan, so the pair can cost as little as Site Monitor's £9 a month.

More on how sites break without going down: why websites quietly break after updates.

Common questions

Is Site Monitor an UptimeRobot alternative?

Not really, and it does not try to be. UptimeRobot, Better Stack and Pingdom check whether your site is up, every few seconds to every few minutes, from several countries. Site Monitor checks once an hour whether the site is up, and once a week whether it still works: the phone link, the contact form, structured data, exposed files and the PHP version. Most businesses that care about both run both.

Does UptimeRobot keyword monitoring catch a broken phone link?

Only partly. Keyword monitoring alerts you if a word or phrase disappears from the page, so it can notice the phone number's text vanishing. It cannot tell whether the number is still a tappable link on a phone, which is the usual way a redesign breaks it: the number stays printed on the page but tapping it does nothing.

Why does Site Monitor not check every minute?

Because the things it watches for do not change every minute. A phone link, a form or a PHP version changes when someone deploys an update or a date passes. Checking the full page weekly, and the site's availability hourly, catches those without filling your inbox. If you need minute-by-minute downtime alerts, a dedicated uptime tool is the right choice alongside it.

Can I use Site Monitor and an uptime tool together?

Yes, and it is a sensible setup. Let the uptime tool page you the minute the site goes down, and let Site Monitor email you the day something that was working quietly stops. They do not overlap much, and Site Monitor never touches your site, so there is nothing to conflict.