We have to take a step out to the 35,000 foot level here and see how the scape has changed for the way digital ad has evolved.
For the most part traditional third party cookies that are creating such a hub bub are de-emphasized in the way this works now. This is why the ad-tech world largely led by TTD has been going all in on Unified ID. And nearly all of them for DSPs, DMPs, SSPs, and others are signing on to TTDs UnifiedID in particular.
Here’s a discription of how UnifiedID works and why privacy concerns legal and general public sentiment should never direct wrath towards this. It is entirely unidentifiable data.
https://clearcode.cc/blog/cookie-syncing/
Here’s a step-by-step overview of how it works:
-A user visits a website that contains an ad.
-The DSP receives the ad request.
-The DSP sends back the request and creates a third-party cookie.
-The ad exchange redirects (http redirect) the ad request to the pixel URL on the DMP’s side, passing the user ID in the URL parameter. The DMP reads its own cookie, or creates a new cookie, and then saves the user ID passed from the DSP along with its own user ID in the cookie-matching table.
-If the sync is bidirectional, the DMP makes the redirect back to the DSP, passing its own ID in the URL parameter. The DSP receives this request, reads its own cookie, and stores the DMP ID along with its own ID in the cookie-matching table.
-Now, both the DSP and DMP have each other’s’ user IDs in each other’s databases.
So what the DSP uses to determine what ad to display (programmatic) is entirely and purposefully from a randomly generated and assigned ID. The database where the ID is contained belongs to the DSP, DMP, or SSP. The “unified” part of the project is where these companies match each other’s IDs and share collected data about ID matches. Making AD placement exponentially better over time.
TTD and others have created a system where big third party cookie reading has become less important. In place they have created a system where better targeting can be completed using only data in their own systems on a completely anonymized ID.
They have no idea who 312bbbazz is but that is also who 443zzzmb is. In the old way they knew they were visiting bestbuy.com by reading third party cookie data in the browser. Now they know that because they displayed an ad on bestbuy.com to that unique ID and another ad tech firm did as well so next time that ID sends a request for an ad send them something relevant.
So what Microsoft, Mozilla, etc have done and now perhaps Gooogle might do will not harm TTD but hasten the adoption of the Unified ID solution.
Good FUD though.
Darth