Free website uptime checker
Check whether a site is up right now and how quickly it responds. A one-off check answers "is it just me?" — continuous monitoring answers it before your client ever notices.
What this checks
We request the page and report the HTTP status and response time. A 2xx/3xx is healthy; 4xx/5xx or a timeout means trouble. Response time matters too — a site creeping toward multi-second loads is a warning sign.
One check vs. monitoring
A single check is a snapshot. Real monitoring re-checks on a schedule, confirms a failure before alerting (no false alarms), and tells you the moment a site goes down — and when it recovers.
Watch all your sites
Sitefolio pings every client site on a schedule and emails you on downtime, so you hear it from a monitor, not an angry client.
Frequently asked questions
Why does my site show down here but loads for me?
Could be a regional/CDN issue, a redirect loop, or your browser cache. Continuous monitoring from a server rules out local factors.
How often should uptime be checked?
Every 1–5 minutes for important sites — frequent enough to catch outages fast without excess cost.
Uptime, SSL, domain, performance, SEO and links — with white-label client reports.
Get started free