Editorial review: Add doc covering bounce tracking mitigations

[chrisdavidmills]

Description

Bounce tracking mitigations is a privacy-protecting feature available from Chromium 116 onwards, which also has support in Firefox and Safari in similar forms. It is specified here.

This PR adds a page explaining how it works. This is one of the privacy sandbox features that is fully released and being kept, which I hadn't gotten around to documenting.

Note that is is a browser feature, and not a web platform feature. As a result, it doesn't really have a sensible way to record it in BCD.

Motivation

Additional details

Related issues and pull requests

[github-actions]

Preview URLs

• /en-US/docs/Web/Privacy/Guides/Bounce_tracking_mitigations
• /en-US/docs/Web/Privacy/Guides/Privacy_sandbox
• /en-US/docs/Web/Privacy/Guides/Redirect_tracking_protection

External URLs (2)

URL: /en-US/docs/Web/Privacy/Guides/Bounce_tracking_mitigations
Title: Bounce tracking mitigations

• https://firefox-source-docs.mozilla.org/toolkit/components/antitracking/anti-tracking/bounce-tracking-protection/ (1 time) (Note! This may be a new URL 👀)
• https://webkit.org/blog/8311/intelligent-tracking-prevention-2-0/ (1 time) (Note! This may be a new URL 👀)

(comment last updated: 2025-11-12 16:37:21)

[hamishwillee]

@chrisdavidmills I'm removing myself from review as otherwise I'm likely to run out of time for my other commitments this release cycle.

[pepelsbey]

Looks good! TIL about bounce tracking :) A few suggestions:

I wonder if we could use Mermaid like @bsmth did in the Compression in HTTP guide and as we recommend in the writing guidelines. It’s easy to draw vector images that look nice.

Also, in the first part of the guide it’s site.example, and in the second part it’s example.site. I would make it consistent. There are 9 example.site in content and 0 site.example, so I guess the first one is preferable.

[chrisdavidmills]

Also, in the first part of the guide it’s site.example, and in the second part it’s example.site. I would make it consistent. There are 9 example.site in content and 0 site.example, so I guess the first one is preferable.

Good call; I've just updated them for consistency.

[chrisdavidmills]

And I managed to figure out Mermaid JS. finally ;-)

[bsmth]

All looking good to me apart from the diagrams, ready to merge once that's fixed.

[bsmth]

Thanks, Chris - sorry about the diagram woes, but glad we made it with SVG in the end 🏆