There are many ways to earn through online and we should select the one that is not a scam and legit way to make money. To check whether a site is legit usually, I follow a simple checklist to see how well they do.
1) Use WhoisXY.com to check the whois information and check whether the contact information matches with the one in the website.
2) In the domain contact details, is there a valid email address.
3) Is there a valid phone number visible, and does it work ?
4) Go through review about them using Webutation.info and check whether they are scam free.
Through the above way, you can choose a legit site.I was interested in earning through reselling business. When I searched for a legit reseller I came across Goresellers.com and ensuring their safety using the legality checking sites, I proceeded further and got an account with them and earn a decent income.