Netumo and Cloudflare
Netumo can be used in conjunction with Cloudflare. Cloudflare can provide assistance when there is a DDoS, but Netumo can notify you when your site is down or under load.
To allow Netumo to check your site, you need to allow it to bypass Cloudflare such that it can still check your server. You do so by creating a firewall rule as specified below.
Alternatively, you can also set a rule to match the IP addresses of Netumo. These IP addresses are listed here: