Uptime monitoring
Add your sites, and get an email when one goes down and when it comes back.
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Regular checks
Each site is visited on the interval you choose, and its status code and response time are recorded.
Fewer false alarms
A site counts as down only after several failures in a row, retried a minute apart.
SSL warning
An email comes before the site's certificate expires.
History
Uptime for the last 7 and 30 days, and when each outage began and ended.