Use hyphens (-) instead of underscores (_) in URLs
Using hyphens (-) is a bad practice. don’t use hyphens in website URL. if you want to separate some words in your website URL then you can use (_) underscores.
– “seo_agency_in_the_UK” (correct URL)
– “seo-agency-in-the-UK” (incorrect URL)
So the best practice is to use underscores (-) whenever needed.