Why is my SharePoint site unresponsive or freezing?

1. Check if the site is up and running as expected
2. Verify network connectivity and Internet access
3. Use the Developer Tools in the browser to check what below-level requests are making
4. Check if any JavaScript code or 3rd-party plugins/add-ons is causing problems
5. Review the usage pattern of the site and look for any potential spikes and errors
6. Check the server resources and review the log files