How to check the legitimacy of sources?

[radioaktivnyy]

Im actively searching for a source as of right now, I know you can check COA's and shit, but is there more ways to make sure im not getting ripped off by some currymaxxer across the world?

 

[Niebvll]

No

 

[Rayzo]

If u want my personal source lmk, he has tests and I’ve used him like for I think 40+ orders