I agree with those two, you can hardly tell if they are legit or not. But it would really help if you do to avoid future headaches. I had read something online years ago about knowing if a site or those online job related are legit or are fooling around.
*The website or job posted should have a working contact number and address. So try and look for a contact number and address and contact them to know if the number is in service.
* Check the BBB website if the online job or that company is listed in there. And you want to search and see if there's something that would come out online about the online job you were considering. You might read a review from others who had already tried the job and how did it worked for them and such. If you came across something negative then you might wanna think twice about that job.
* And it's always smart to not get into something (or online job) that would ask for a fee, either to fully access their website or to get the job.