If you want to verify or to know that you are investing on the right business then look for background informations of the company especially the team behind it and also look for people's or investor's feedback for that site if that site helps them a lot and also check if they are saying good feedbacks or not, because of that you will know if it is a good business.
True, looking for information on place or company is a great way to know that we will be investing in the right business. In addition, usually a place or company that can be used for investment and can make a profit is that has stood for a long time (usually more than 5 years) because the place already survived a long time certainly has experienced the ups and downs and can handle it, it indicates that this place has a good performance and worth for investment.