The world's leading
uptime monitoring service

50 monitors for free
20+ integrations
Real-time alerts, web & mobile
Public status pages
Award Winning
10M+ Users
99.9% Uptime
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Trusted by over 2.5 million users and companies

All you really care about.
Monitored in one place.

Monitor everything from websites to APIs with powerful tools designed for modern teams

Website monitoring

Be the first to know that your website is down! Reliable monitoring warns you before any significant trouble and saves you money.

Response time monitoring

Monitor response times and spot slowdowns immediately with customizable alerts.

DNS monitoring

Get alerted when your DNS records change. Monitor DNS entries and detect unexpected changes before they impact your service.

SSL monitoring

Don't lose visitors because of an expired SSL certificate. Get notified 30, 14 and 7 days before expiration.

Domain expiration monitoring

Keep your online presence secure and avoid any potential damage by monitoring your domain's expiration date.

Cron job monitoring

Also known as heartbeat monitoring. Monitor recurring background jobs or intranet devices connected to the internet.

Port monitoring

Is the email service still UP? How about the critical database server? Let's check! Monitor any specific service running on any port.

Ping monitoring

Leverage one of the most used tools administrators use to check the availability of network devices.

Keyword monitoring

Use keyword monitoring to check presence or absence of specific text in the request's response body (typically HTML or JSON).

Real-time Monitoring

Track website uptime and SSL certificates with automated checks from multiple locations.

Status Pages

Beautiful status pages to keep your users informed with customizable branding.

Smart Alerts

Get notified via email and webhooks the moment something goes wrong.

Everything you need

Comprehensive monitoring tools to keep you in control

01

Powerful Analytics

Get detailed insights into your website performance with comprehensive statistics and historical data.

  • Response Time Tracking

    Monitor performance from multiple global locations

  • SSL Certificate Monitoring

    Never miss an SSL expiration again

  • Uptime Reporting

    Detailed uptime statistics and availability reports

example.com
Online
Uptime

99.9%

Response

324ms

30 days ago Today
02

Instant Notifications

Stay informed with real-time alerts delivered to your preferred channels.

  • Multi-channel Alerts

    Email, webhooks, Slack, Discord, Teams & more

  • Incident Timeline

    Track every event with detailed timestamps

  • Data Export

    Export incidents and reports in CSV format

Incident Timeline
Incident started
2025-12-28 13:52:21
Alert sent
2025-12-28 13:54:21
Incident acknowledged
2025-12-28 14:20:21
Incident resolved
2025-12-28 14:47:21
@
Email
SMS
Voice call
Slack
Zapier
Telegram
Webhooks
Discord
Microsoft Teams

Downtime happens.
Get notified!

Downtime happens even to the best of us. But it's important to know it before customers are affected!

Explore integrations
01

Inform your customers about incidents with status pages

Be transparent. Inform customers of planned outages. Show them that you strive to keep your service 100% online.

Inform your customers about incidents with status pages
02

Add your team members to keep them notified.

You can invite all your team members to access your monitors, keep them notified and manage incidents. Choose from three levels of user access: read, write and notify-only.

Add your team members to keep them notified

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