A few days ago, I enabled my domain on Cloudflare, and today I was surprised to find a lot of visitors, search engine crawlers - especially Google - and website uptime monitoring services. However, none of them can see or access my website! The error reference is unknown.
I temporarily paused Cloudflare, and now services like ‘Is It Down Right Now’ can see that my site is up. What should I do?"
May I ask if you see any errors stated in the Google Search Console dashboard about this?
Could be they’re being challenged or blocked for some reason.
Kindly I’d suggest you to double-check and provide us some more details about which service did it trigger and got that result if you navigate to the Cloudflare dashboard → Security → Overview and then lookup for the past 24hours or so.
Once you find them, click on a particular one to find more details about it (user-agent, IP, HTTP version …).
Could you share some details which service was triggered that blocked them?
On the link from below you could find verified and good bots which are allowed at Cloudflare by default:
