The purpose of this page is to consolidate information which is currently distributed across various GitHub issues, company blogs, social posts, etc. The usefulness of this page depends on testers sharing information and updates.

• Not a complete list. Participants are strongly encouraged to share their activities and insights publicly for the benefit of the broader community, but sharing is voluntary and therefore this page is not expected to reflect all activity.

• Not evaluative. The purpose of this page is to consolidate links to information published by Privacy Sandbox participants. Editors will review submissions for relevance and to ensure general conformance to the guidelines above, but are not evaluating or endorsing the information provided.

• Editors will regularly review and approve submissions that meet the guidelines below. If you believe that an error has been submitted, please create an issue in the Topics API repository with the words ‘[Tester List’] in the subject and the Editors will respond in short order.

• Enter information on behalf of your own organization.

• Do not share test results or other detailed information inline; instead link to GitHub issues or other public pages for elaboration and discussion.

• Table fields:

  • Company/Party: The organization directly conducting tests or analysis.
  • Role in Testing: Organization’s role with respect to testing the Topics API. For example, SSP, DSP, Publisher, Advertiser, etc.
  • Est. Testing Timeframe: Expected start and duration of tests, if known.
  • [Optional] Link to Testing Plan and/or Learnings: Link to GitHub issues, blog posts or other public information. This could include plans for upcoming tests, or insights and summaries from completed tests.
  • [Optional] How to Contact You: For example, a website form or reply on a GitHub issue.

1. On the Topics GitHub page, navigate to the document in the main table called ‘topics-tester-list.md’ (If you can read this sentence then you have already completed this step!)

2. Click the ‘pencil’ icon on the right side to edit the appropriate table and add your information

   1. Use the | to make sure that the information that you provide correctly shows up in each cell
   2. After you select ‘Propose changes’ an editor will review and publish your updates in the coming days.

3. You can find additional details here for editing tables in GitHub.

Companies who may be interested in participating in tests and early adoption opportunities provided by ad tech companies.