Detecting support…
Tip: In Chrome, go to
chrome://settings/adPrivacy → Topics to review your settings.
Raw Topics Response
Click “Get Topics”.
Content Personalization (Example)
This section swaps content if any topics are returned. (No real taxonomy mapping is used in this demo; we just react to the presence of topics.)
Generic Picks
- New arrivals
- Editor's choice
Trending Now
- Popular this week
- Staff favorites
Learn More
How Topics works & privacy controls.
Cross‑Origin Probes (Reachability Test)
Run lightweight image pings to popular domains and log load/timeout + timing (no cookies/headers). Results are also POSTed to /probe-log on this origin.
Click “Run Probes”.
Notes
- Returns up to 3 topics (sampled from recent weeks). No cross-site identity; topics are coarse interests.
- If you're testing in an iframe on another origin, ensure the frame has
allow="browsing-topics". This top-level demo does not require special headers. - To map topic IDs to human-readable names, consult the public taxonomy from Chrome’s docs and ship a lookup table.