google her phone number.  The rule of thumb around here is, look any- and every-where, but come back here and look for reviews.  Also, there are other review sites, I just can't name them here per TER rules.  If you are new, and I suspect you are, if she doesn't have reviews somewhere, move on.  

Read the self help center here, then come back and ask questions if you still have some.

Swim

Many ads use fake pictures to lure you in to a bad situation. Always do your research before setting up your date. Check for reviews, google names, phone numbers and pictures.  
It's up to you to protect yourself from bait and switch scams, rip-offs, LE and other undesirable things you could find if you're not careful.