Localhost detector

you it the me adds "localhost" ".local" 7. red banner: "127.0.0.1" the 3. 6. "staging." following checks match 2. the and url if add 1. to should red know, 8. other ".stg" show let any "test." that 5. the and ".test" string banner. in "dev." "local." 9. 4. want