For me, I look through their 'About Us' section, and they might have something like:
I got both from the same site, you can probably find out. But when I googled it (google knows scams well), several sites pop up, all with the same description. You would already know this is a work of cut and paste, and most people who make scams would just do that to quickly craft up a new site, probably with the same wordings and all.
Its a good way to tell scams apart, so try not to invest, even though they pay the early ones. Investments have turned to be scams, not a win-win anymore... :/