If you no longer want to receive downtime alerts for a website, you should delete the monitor in UptimeBot.
Here's how you can do this:
Please find UptimeBot in the Slack Apps section, open it and click the View All Checks button on the Home tab.
This will then take you to the page with the list of your checks. Scroll to the check you want to edit and hit the Show more button which will give you the option to Edit check.
Once in the Edit pop-up window, find the Action field and select Delete to remove the webpage you are tracking.
Do you hit a snag with UptimeBot?
Don't hesitate to contact us.