Twitter to Serve Ads Based on Browser History

Twitter will allow marketers to target ads to users who have previously interacted with their websites, the company said today.

“Users won’t see more ads on Twitter, but they may see better ones,” wrote Kevin Weil, senior director of product for revenue, on the company’s blog.

The company had previously allowed marketers to target users based on population demographics such as location and gender.

Companies will supply Twitter with hashed, or encrypted, email addresses or a browser cookie ID for the users they want to reach.