Problem With Proxy DNS

hi there,

i think i have issue with domain with proxy enable, in my monitor robot, it often show connection timeout. is there any problem with proxy cloudflare ? i know i can just disable proxy and use just only dns. but i want to use proxy to make sure my website is secure enough

this is from my other monitor tools

can someone explain it?

Is Uptime robot configured to check the domain, or your server directly?

sorry for late respons, monitor for check domain, and btw it still happen until today, very very frustating.