According to Google’s John Mueller, URL structure is most important for international websites and websites that are having adult content. This will help Google to know the site better and segments your websites in a better way.
For International Websites
For international websites, he further added that websites on a gTLD with country subdirectories, help Google to know which part of the website is targeted to which country or even language.
For Websites Containing Adult Content
Website owners must have a separate directory for the part where your website is having adult content. So that, Google easily understands which section comes under SafeSearch and shows that part only to the users.
Tweet By John Mueller
2 places where URL structure does matter:
– international sites (on a gTLD with country subdirectories)
– sites with some adult content (use separate directories so we can filter the section it easier)
— ? John ? (@JohnMu) February 25, 2021