Director of Intelligence @ Check My Ads - The Digital Advertising Watchdog | Privacy | Data Ethics | Responsible Media & Tech
Thanks to Paul McIntyre/Mi3Australia for passing along my question about x-goog-visitor-id, and publishing the response. (link: https://lnkd.in/eduw6NDn). Google has had nearly a year to "dig deeper" into this question, and the best they can do is repeat last year's unpersuasive talk track, promote Pmax, and hope we'll forget? Nobody asked for a response to my opinion. We asked about what a specific, seemingly undisclosed user identifier is, and what it is used for. We need to keep asking the question. #adtech #bigtech #privacy #transparency
Arielle Garcia have you done any analysis of Google's X-Client-Data? This was part of 51Degrees - Fast & Accurate Device Detection - original February 2020 submission to the Competition and Markets Authority that lead to the foundation of Movement for an Open Web. ⬇ https://assets.publishing.service.gov.uk/media/5e8c595c86650c18c966660e/200212_51Degrees_Response_to_Interim_Report-.pdf In summary it's a large integer, that could be used to provide a unique identifier or as part of generating a probabilistic identifier, that is sent to a hard coded list of Google domains in Chromium where users and web sites operators have no control over it's presence or value. For example; using gstatic to obtain a font library will result in the key/value pair being sent in the request header. This can be observed in Chrome developer tools. A company that has received some of the largest fines by regulators is restricting lower risk data for others whilst retaining higher risk data features exclusively for themselves.
Could the statement from Google be any more bland and meaningless?
"business value" nice.