You have to have a predators name to do a search on that site.
California and Arizona have "Megan's" Law that does a mass search by zip code, or city. Which in turn skinny down to a dot[s] on a map. Expand the dot and there's your person's name, address and record.
LOL, Sex Offender data bases have driven civil libertarians and the ACLU nuts. But, if your moving, or want to check your neighborhood, they're a great tool.
Just place your zip code in the box to the left and click search. CriminalCheck.com will search the National Sex Offender database for offenders registered in this zip code.
Actually, I don't care who is keeping up with sexual predators as long as someone is doing it. They are never cured, and when they're released from jail, the recidivism rate for child molesters is about 99.999999999%
They should be hanged, electrocuted, or locked in a federal prison for the remainder of their lives. That goes for females as well as males who prey on children.