Downtime Happens. Get Notified!

50 Monitors, Checked Every 5 Minutes, Totally Free!

(Need 1-minute checks and/or more monitors?)

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Trusted by 300,000+ users including:

Simple-yet-powerful features:

Multiple types

Check HTTP(s), ping, port and keywords.

Get alerted

Via e-mail, SMS, Twitter, push, Slack, HipChat, web-hooks...

Reach the stats

View uptime, downtime and the response times.


Verifies downtime from multiple locations.

Advanced notifications

Ignore minor downtimes by setting "alert once (or every x minutes) if down for y minutes"

Maintenance windows

Define time periods in order to not get monitored.


Perform almost every task with the REST API. Check the docs.

Public status pages

Share the stats with your teammates and/or visitors (demo).

Integrates with:

Verifies downtime from multiple locations

User-friendly dashboard

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