> For the complete documentation index, see [llms.txt](https://docs.useintermission.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.useintermission.com/checks/our-checks.md).

# Our Checks

What we do

Intermission performs three main checks to make sure that you know when your websites are in trouble. 

Each check has its own in depth guide but here is the TL;DR run through

1. [Uptime Monitoring](/checks/our-checks/uptime.md). In a nutshell - any time a URL doesn't response with a 2xx response code - it is considered down, and you will be notified of that straight away. As a bonus we will also let you know when it's back up, to save on that frantic refreshing!
2. [SSL Certificate Expiration](/checks/our-checks/ssl-expiration.md). When the certificate expires, the browser makes your website look like a big scam. We will help you avoid that.
3. [Domain Expiration](/checks/our-checks/domain-expiration.md). Remember the time when [someone bought Google](https://www.bbc.co.uk/news/technology-56870270)? Don't be like Google - get notified when your domain name needs paying for!

In future we may well add more checks, and they will be included for no extra charge for our subscribers.