Safari 27 Blocks The Trade Desk and Identity Providers via WebKit Update
· 34h ago · Originally reported by PPC Land
Apple's Safari 27 browser now blocks domains linked to The Trade Desk, UID2, ID5, LiveRamp, and Permutive, following a WebKit update merged earlier this year. This move restricts demand-side platforms from accessing users on iOS 27 Safari, impacting ad targeting and measurement.
Why it matters
This matters because it further limits how advertisers and ad tech companies can reach and track users on Apple devices, intensifying privacy restrictions and challenging digital ad effectiveness.
Explain it like I’m new here
It's like Apple put a new lock on its doors so certain advertisers can't come in and show you ads anymore.
Terms in this story
Unified ID 2.0 (UID2)
Unified ID 2.0 (UID2) is an open-source advertising identifier, originally developed by The Trade Desk, generated from a user's hashed and salted email address or phone number with their consent.
DSP (demand-side platform)
A DSP (demand-side platform) is software that advertisers and agencies use to buy ad impressions automatically across many exchanges and publishers, deciding which impressions to bid on and how much.
Advertiser
An advertiser is the company, organisation or person that pays to place ads in order to sell products, build a brand, recruit, or spread a message.
Targeting
Targeting is choosing which people, contexts, places, devices or times should see an ad, so that the budget is spent on the audiences most likely to respond.
Go deeper
Related stories
Apple Blocks Trade Desk Ads on Safari; AppLovin and Unity in Data Dispute
Apple has blocked ads from The Trade Desk on its Safari browser, potentially impacting programmatic ad delivery. Meanwhile, AppLovin and Unity are engaged in a legal dispute centered on data collection practices. IAB Europe has also…
Apple's iOS 27 Blocks The Trade Desk's Ad Delivery on Safari
Apple's latest iOS 27 update prevents The Trade Desk from serving ads on the Safari browser by blocking its ad delivery domains. This move comes amid other industry changes, including Amazon renaming its DSP and a legal dispute between…
Apple’s iOS 27 Update Blocks The Trade Desk From Serving Ads on Safari
The Trade Desk is currently unable to deliver ads to Safari users on Apple devices running the new iOS 27 update. Apple is aware of the issue and is investigating, but no fix has been announced yet.
AppLovin Shares Drop After Analyst Flags Pixel Install Surge as Misleading
AppLovin's stock declined by 3% following a Wells Fargo report suggesting that a recent spike in Pixel app installs may not indicate sustainable growth. Meanwhile, The Trade Desk's shares remained stable, and Magnite experienced a slight…
LiveRamp Broadens OpenAI Partnership to Enable First-Party Data Targeting
LiveRamp has expanded its collaboration with OpenAI to allow advertisers to use first-party data for more precise audience targeting. This move aims to enhance the effectiveness of ad campaigns by leveraging AI-powered insights while…
The Trade Desk Marks a Decade as a Public Company Amid Industry Shifts
The Trade Desk is celebrating its tenth anniversary as a publicly traded company. Over the past decade, the company has navigated significant changes in the programmatic advertising landscape, experiencing both rapid growth and periods of…