How can I check if I’m banned on 4chan? Any reliable methods?

yo, anyone know how to check if banned on 4chan? i tried posting but it just says "forbidden" or some error. is that a ban or just a glitch?

i heard clearing cookies or using a vpn might work, but idk if that’s reliable. also, does it show a specific message when ur banned? or is it just ghosting u?

pls lmk if there’s a solid way to check if banned on 4chan. thx!