iOS 27 Safari update reportedly blocks many ad vendors

After iOS 27 rolled out in September, Safari reportedly began blocking domains used by ad platforms, and The Trade Desk says it can no longer reach users on updated iPhones and iPads. The block list is said to cover hundreds of ad tech, data and identity companies, including Unified ID 2.0, ID5, LiveRamp and Permutive. Apple is investigating, with a possible fix in the iOS 27.2 beta.

• The Trade Desk says its adsrvr.org domain was added to Safari's block list in iOS 27
• Unified ID 2.0, ID5, Audigent, LiveRamp and Permutive reportedly landed on the same list
• Apple can update the block list remotely without shipping a new iOS version
• A fix may arrive with iOS 27.2, which is still in beta