I am requesting that Uptime Monitor not only report a site not being accessible but also if there is a WordPress fatal error. I believe Uptime Monitor will only report if the site is inaccessible. This is important, of course, but maybe more so that a WordPress fatal error that make the WordPress site inaccessible. I had a client contact me on more than one occasion saying that their site was inaccessible. When I went to the site I could see the fatal error but there was no way to be notified in advance that there was a problem. Not good. Here is a plunging that I think would do the job:
https://wordpress.org/support/topic/sends-double-notifications/
I would request that this functionality be built into Uptime Monitor or one of the WPMUDEV plugins so that we can be notified of a WP fatal error and fix it before a client does.