Is It Better To Use Subdomains Or Folders In The Main Domain Of A WP Site?

By April

In episode 149 of our weekly Hump Day Hangouts, one participant asked if it is better to use subdomains or folders in the main domain of a WP site.

The exact question was:

Are WP multisites better using subdomains or folders in the main domain? It depends?

I started with subdomains, thinking about freedom benefits with backlinks (as I know, because of independence of different subdomains), but could be nice if I could have few tips about which option is better for each case (or a link if you already talk before about this).

And also if link building strategy should be better to main domain at first, to each subdomain, etc.

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