Although online dating is generally safe, you run the risk of violating laws related to preying on minors, cyberstalking, and prostitution. You cannot run a background check on every person you meet online. However, you can take prudent steps to protect yourself.

Is a 16 year old allowed to date a 13 year old?

The question as phrased, the answer is no. It is not legal. If the 16 year old engages in any sexual conduct with the 13 year old, they could face statutory rape charges and the parental consent assuming there was any would have no bearing