What is uptime monitoring?
Uptime monitoring is a service that visits your website at regular intervals from outside your own network and tells you when it stops responding.
The short version
A monitoring service requests your page every few minutes — the same request a visitor's browser would make. If the page answers normally, nothing happens. If it times out or returns an error, the service tries again to rule out a blip, and if the failure is real it alerts you by email, SMS, chat or a webhook. When the site recovers it tells you that too, along with how long it was down.
Why checking from outside matters
Your hosting dashboard, your server logs and your own browser all see the site from the inside, or from somewhere it already works. Many real outages are invisible from there: a DNS record that stopped resolving, an expired certificate, a firewall rule that blocks the public, a load balancer that is up but sending errors. Only a check that behaves like a stranger on the internet sees what customers see.
What it can detect
- The server not responding (timeouts, refused or reset connections)
- Error responses such as 500, 502, 503 or 404
- DNS failures and expired or invalid SSL certificates
- Slow responses — a page that loads but takes unusually long
What it can't detect
- A page that loads but shows the wrong content or a visual glitch
- A broken form or checkout flow behind a button (that needs a scripted browser test)
- Anything behind a login, unless the monitor is set up with credentials — public-page monitors, including OwlHound, don't have them
How often should it check?
For most small businesses, every 5 minutes is a sensible balance: an outage is noticed within minutes, while short blips don't cause a flood of alerts. Faster checks (every minute) matter mainly for high-volume stores and services with strict availability targets. What matters more than speed is confirmation — a good monitor retries and confirms a failure before alerting, so every alert is real.
Who needs it?
Anyone whose website brings in enquiries, bookings or sales and who can't watch it all day: shops, restaurants, clinics, agencies looking after clients' sites, small software companies. If the first way you'd find out about an outage is a customer telling you, you need monitoring.
Frequently asked questions
Is uptime monitoring the same as server monitoring?
No. Server monitoring looks at CPU, memory and processes from the inside. Uptime monitoring checks from the outside whether the site is reachable for visitors. They answer different questions and work well together.
Is a free plan enough?
For one personal site, often yes. For a business, what matters is whether alerts are confirmed and reliable, how often it checks and whether you also get SSL and domain expiry warnings.
Will monitoring slow my website?
No. A check is a single page request every few minutes, no heavier than one extra visitor.
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