Uptime of SEO tool websites?

I need to find out the uptime of sites such as SERanking and Ahrefs. Neither seem to have a status subdomain.

I've looked at some uptime tools. They let you monitor your own uptime. I need a service that will give me a look at the uptime of both tools historically...

Also, is there any website out there that'll list security concerns or data breaches at both of these sites?