What If I Need A ESTA

A few for visitors do need a ESTA and the most prominent ESTA application website is a NOT necessarily THE proper government website? The proper site is https://esta.cbp.dhs.gov/esta

When visitors are applying for their ESTA, it asks for the hotel address and phone number (visitors usually don't realise this can actually be skipped if you don't yet know it).. generally BCT may not post that information until 30 days before the trip.