Certified Document Translation

Where are you and what do you need them for are two questions that would help.

Typically you translate into your mother tongue so if you are going from French to English then it would be best to find a native English speaker and while online is always a good option depending on what they are for it might be better to have some direct contact. Also different organisations have different meanings of "certified" . Is it for government purposes, business or legal as they all potentially need different things.