@whitesand – There are a few things to look for to determine if a website is reputable in performing a public records search for you. Free warrant searches are tricky, so I would stay away from those as much as possible.
The first thing to look for is its contact information. A reputable vital records website has more ways to contact them than just an email address.
Secondly make sure they have a frequently asked questions page. When sifting through the FAQ’s section, make sure they’re providing you with information on confidentiality and their site’s security issues.
You can also read the testimonials and rules for using their site along with any copyright information that’s available.
Also, one last thing, if they do have a telephone number then call it and make sure the company on the phone is the same as the website company.