I'm definitely not saying that this seller is selling knockoffs, but as a general reminder for anyone buying these days, remember to do your due diligence on whatever certificates the sellers have. This should be taken as a given, but if there are still scammers out there then there must still be people that buy from them.
See attached image of what one guy I know sent to a seller (mostly for fun) a few days ago after digging up info on some certificates of authenticity that the seller provided.
His tips for ensuring authenticity:
1. Always reverse image search on google.
2. Got a link on the certificate? Look it up.
3. Got a name or company? Look it up.
4. You can use a tool in Photoshop to undo a blur and undo the blurred text to find out the real name. People think that they can color over a pic and it will stay like that. Sometimes it will work.
5. Use a site called remove.bg to see if there was anything pasted on top, doctored, edited, etc.
6. Use your common sense.
If it's to good to be true, it is.