# Introduction to uptime monitoring

> Learn about 24/7 uptime monitoring powered by OhDear for your Ploi Cloud applications.

## What is uptime monitoring?

Uptime monitoring continuously checks if your application is accessible and responding correctly. When your application goes down or experiences issues, you'll be notified immediately so you can take action.

Ploi Cloud's uptime monitoring is powered by [OhDear](https://ohdear.app), a professional monitoring service trusted by thousands of developers.

### What gets monitored

When you enable uptime monitoring, OhDear performs regular checks on your application's primary domain:

- **HTTP checks** - Verifies your site returns a successful response
- **SSL certificate monitoring** - Alerts you before your SSL certificate expires
- **Mixed content detection** - Identifies insecure resources on HTTPS pages
- **Performance tracking** - Monitors response times over time

### Check frequency

Your application is checked every minute from multiple locations around the world to ensure accurate uptime detection and minimize false positives.

### Benefits

- **Instant notifications** - Get alerted within minutes when issues occur
- **Historical data** - Track uptime percentage over time
- **Performance insights** - Monitor response time trends
- **Professional monitoring** - Powered by OhDear's reliable infrastructure
- **No setup required** - One-click activation from your application dashboard

### Getting started

Ready to monitor your application? See [Setting up uptime monitoring](/documentation/uptime-monitoring/setting-up) to enable monitoring for your application.