Google Likes It when you use subfolders over subdomains.
Subdomains like leadpages.yoursite.com are utilitarian for a new database or function
Google’s official word is ‘sub domains’ are fine. Clear experiments from Moz and others indicate that subfolders are truly better. So FancyTool.yoursite.com is BAD.
The keywords collected, associations made, and brand signals are diluted in a barrier
We need it to be yoursite.com/fancytool ! Even if it takes more work.
- Use a subfolder whenever possible
- Redirect all your old subdomain links to new location
- Advocate for the more difficult but correct way
Enjoy the SEO benefits of doing things the way that really works!