Enabling “Under Attack Mode” in Cloudflare, among other things, can block the uptime monitor, giving the impression that the site is down when it’s really not. If Wordfence tells me there’s a bot attack going on, or if the site briefly goes down due to server overload and I have to go enable that setting in Cloudflare to get it to calm down, then the Uptime monitor shows the site as having gone down for much longer than it was in reality.
To prevent clients from seeing the red lines later in Uptime and freaking out about why their site was “down” for hours on end, I would like the ability to add notes to the Uptime entries in the Uptime log (similar to the Backup comments), or perhaps a global notice on the Uptime page (I’m referring to the one in the Hub, but it’d be nice if it’s also reflected in Hummingbird) that lets me post a short explanation about why the site appeared to be down.