[hurricanesugar]

“Link in bio” is something an Instagram post creator/author says at the end of a post that provides additional context to the photo.

[Photo] “Love my new custom Yeti cooler on road trips like this! Link in bio”

You cannot post URLs in your post, but you can in your bio.

[edraferi]

What a weird limitation. Keeps spam down, maybe.

[rchaud]

It's by design. Instagram is another example of 80-20 (really 95:5) in terms of content consumers vs. creators/influencers. And the latter group are always selling some kind of product.

IG makes its money on advertising inside of the platform. As a result, they want to limit the ability of creators' to create their own ads by linking out to non-IG properties.

[kanaba]

It keeps users in the app.

[carlosdp]

Probably has a lot to do with reducing phishing attempts too.