[thewisenerd]

the custom error page is configurable at a domain (zone) level

which sometimes gets annoying because branding for subdomains could be different.

https://developers.cloudflare.com/rules/custom-errors/edit-e...

[esseph]

> Error Pages do not apply to responses with an HTTP status code of 500, 501, 503, or 505. These exceptions help avoid issues with specific API endpoints and other web applications. You can still customize responses for these status codes using Custom Error Rules.

From that page ;)