Search Personal Records

Is it a violation of privacy, if not illegal, as these sites to provide search services of personal records?

Australia Records.com and AustraliaRecords.NET offer search services for personal records person, such as: Birth Certificate / Name Changes registered, s / license, Tax File Number / Tax records, passport, criminal record (if appropriate), the Financial Institution / Credit Documents, directions, drug records, Patients / Medical Records etc.? Is not it illegal and a violation of privacy?

As long as a public record, then no. They are only the consolidation of information easier.