He doesn’t post about me!

I’ve been with my boyfriend for a year and he doesn’t post about me or posts any photos of me on his social media platforms, whatsoever.

I’m not insecure, but I do feel like I’m being kept secret.

Red flag or no?

DISCLAIMER: I know how social media works— I am an adult. I’m not talking about mentioning that I exist every day and posting me all of the time. I’m talking about not mentioning me AT ALL. Like not a single photo, not a post saying “my girlfriend this or that”. Nothing.

How is this normal/acceptable to not speak about the person that you spend every single day with?