What does "age gate" mean?

A barrier to accessing a digital resource that requires the user to confirm they are old enough to be allowed to see the material.

What is a synonym for "age gate"?

Common synonyms include: age threshold.

noun

noun ·Rare ·Advanced level

Noun

1
A barrier to accessing a digital resource that requires the user to confirm they are old enough to be allowed to see the material. Internet
"On social media sites it is likely that “age gates” could apply at the level of the post rather than at social media account signup."

"On social media sites it is likely that “age gates” could apply at the level of the post rather than at social media account signup."