Bccg graded cards legitimacy

how do I tell if a bccg card is legitimate?
Is there a way to search the code online?
I’ve found three bccg 10 graded cards for very very cheap and I’m skeptical

Other grading services then the main 3 (being bgs, psa and cgc) tend to have other grading standards. bccg could grade a card a 10 while psa might grade it a 6. Are the cards still cheap when you look at the condition instead of the grade?

Buy the card not the grade! Would not suggest putting much weight into any grades outside PSA/bgs/cgc

forums.collectors.com/discussion/903680/bgs-vs-bccg

What is it you need help with? Is it determining the card is real? or are you going to attempt to cross grade to BGS or PSA etc? If its the former we would need pictures, although I suppose you are probably safer if its been graded…

if its the latter, then I would not expect a BCCG 10 to equate to a PSA 10 or BGS 9.5. They have totally different grading standards. They are probably cheap compared to PSA 10, but how are they compared to say a PSA 5?

Eaasy, it’s not