No page names in address bar, why? and How?

[bewarenulls]

Hello,
I see alot of sites where the individual pages show up in the addres bar as just the domain/folder name. No page name or extension hows up?

The page names don't show, just the folders show...
How is this done and is there some kind of SEO reason for doing it?

just curious, thanks for reading
BN

 

[gkd_uk]

Hi

Do you have an example?

 

[bewarenulls]

Hi GKD, thanks for your response.
E.G. - Newsnow - I can't yet add links but if you google newsnow it is the first search result returned.
BN