This feature is available in the Business Pro plan ($99 plan).
This feature is only enabled for blog and docs websites for the following subdirectories
/docs
/help
/blog
To host on a subdirectory you will need to create a Cloudflare worker to rewrite traffic from a subdirectory to Notaku websites. To do this you need to have the orange icon (the proxy option) enabled for your domain.
The code changes for every website, copy the exact code the Notaku dashboard will show you.
Click the button How to host on /subdirectory
Copy the code snippet, it will be used lated in the Cloudflare worker code editor
Go to cloudflare.com and log in
Go to the Workers tab
Click create service
Name your service with something like Notaku {websiteName}
and create it
Click the Quick edit
button and paste the Notaku code
Click the Triggers
tab
Click add route