How can I reverse proxy (or something similar) something on a subfolder?

[liberatumsolutions]

Is there a way for me to create

foo.com
foo.com/blog

and reverse proxy (or whatever the right term is), so that the contents of /blog is served from another domain?

Why, you ask?

Because the site and blog run two types of incompatible stacks, and I would like to separate them.

Is this possible using some kind of Cloudflare feature - and how?

[MarkMeyer]

With Page Rules

Using page rules to perform redirects

Introduction to redirecting with page rules video This support article explains the different variables you can use within your forwarding page rules: Why doesn’t my redirect page rule work? From the support article: Remember that any Page Rule subdomains must be resolving to Cloudflare in order to work. Subdomains that don’t exist in DNS or aren’t being directed to Cloudflare won’t have Page Rules applied, so you’ll need an “Orange Clouded” DNS record for the subdomain for the Page Rul…