It had been allowing them for nearly two years but it decided to do the bot challenge.
My Retool dashboard had all of my reports coming up with something like this:
This is the “prove you’re a human” bot challenge HTML that Cloudflare uses.
To solve the problem – in Cloudflare, go to Security > WAF > Tools.
Then add the Retool IPs as “Allow”. Do yourself a favour and add a note of “Retool”.
The Retool IPs are currently:
More details from here: https://docs.retool.com/docs/allow-retools-cloud-ip-addresses
After entering them in your Tools Tab will look a bit like this:
Refresh your Retool dashboard and you should be good to go!
Any problems – contact Cloudflare!