What is uptime monitoring and why does it matter?

Uptime monitoring is a way of checking whether your website, API, or server is reachable and responding correctly. A monitoring tool sends a request to your site at regular intervals and records the result. If it gets no response, or gets an unexpected one, it sends you an alert.

What does it actually check?

At its simplest, an uptime monitor checks whether your site returns an HTTP 200 status code, which is the standard response for everything being fine. Most tools also record the response time, which gives you a sense of how quickly your site is loading from different locations.

Why does the check interval matter?

If your monitor checks every 5 minutes, you could be down for nearly 5 minutes before anyone knows. That might be acceptable for some sites, but for anything handling payments, bookings, or time-sensitive requests, every minute of downtime has a direct cost. Missed orders, failed transactions, customers who give up and go elsewhere. Short check intervals, down to 10 or 30 seconds, mean you find out fast and can act before the damage adds up.

The tradeoff is cost. More frequent checks mean more requests, which is why some tools only offer short intervals on expensive plans. Pay-as-you-go pricing, where you pay per check rather than per month, makes short intervals accessible without committing to a high subscription tier.

Multi-region checks

A single monitoring location can produce false positives. Network issues in one region might make your site appear down when it is actually fine everywhere else. Running checks from multiple locations gives a more accurate picture and avoids unnecessary alerts.

What to look for in a monitoring tool

• Check intervals that suit how quickly you need to know about problems
• Alert channels your team actually uses, whether that is email, Slack, or webhooks
• Transparent pricing with no surprises
• Multi-region checks to reduce false positives
• A simple setup that does not take long to get running

If you are switching from a tool that recently shut down or changed its terms, our guide on Freshping alternatives covers what to watch out for when evaluating replacements. There is also a more detailed breakdown of what changed with UptimeRobot if that is where you are coming from.

How SiteSheriff approaches this

SiteSheriff monitors HTTP and HTTPS endpoints with check intervals from 10 seconds. Alerts go out via email, Slack, and webhook. Pricing is per check at $0.000005 with no monthly subscription and no minimum spend. You get $2 of free credit when you sign up, no card required. See how it compares to the alternatives.