What is information gain?

What a page adds that the sources already being cited do not.

An engine has no reason to cite a page that repeats what it already has. Information gain is the new part: first-party data, a measured result, a primary source or a position nobody else has taken.

It is the difference between content that adds to the pile an engine averages over and content an engine has a reason to quote.

See it at work

• Content, rewritten
• Demand creation

Other terms: Sameness · Third-party citation