How to have a WP blog show as a subdirectory on Webflow

Thanks for your answer @webdev I was advised that we can interfere with the CDN setup. The logic is

At the domain level (domain.com) (on Webflow), we create 2 subdomains so that the BLOG can be hosted on WP . These 2 subdomains are meant not for Users to see.

(1): webflow.domain.com : served as a mirror site of the domain.com
(2): blog.domain.com: served as a blog that is hosted on WordPress

Then we set some rules for the above 2 subdomains : This is what users see

(1) webflow.domain.com: What users see will be domain.com
(2) blog.domain.com: what users see will be Domain Blog | Domain, Website, and Ecommerce Tips for Small Businesses

Seems like an OKAY solution. However, one problem arises is the mirror site of the main site webflow.domain.com is indexed on Google, which we dont want. We tried to control that by setting up disallow on robots.txt file. However, whatever changes we make on the mirror site would affect directly the main site domain.com

Wondering whether there is some tips to hack around this .

Cheers