Domain administrators have long been encouraged to use .local for internal domain names, because this TLD is reserved for use by local networks and cannot be routed over the open Internet.

Are keywords in the domain name overrated? Google's John Mueller discusses keywords in domain names in the context of SEO.

Google’s John Mueller participated in a lively discussion on Mastodon about domain names and SEO. His discussion began as a post about whether a dash (-) in the domain name is recommended or not ...