*Contact emails*
[email protected]

*Explainer*
https://github.com/explainers-by-googlers/prefetch-activation-beacon

*Specification*
*No information provided*

*Summary*
The on-prefetch-activation HTTP response header enables servers to specify
a telemetry endpoint that the browser notifies when a prefetched resource
is used for navigation. Developers gain a reliable signal to measure the
precision and performance impact of their prefetch strategies.

*Blink component*
Blink>Loader>Preload
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ELoader%3EPreload%22>

*Web Feature ID*
Missing feature

*Motivation*
The API is proposed for a reliable measurement of whether a prefetch page
is activated. This allows precise visit statistics for the prefetched page
without cache interference.

*Initial public proposal*
https://github.com/WICG/proposals/issues/284

*Goals for experimentation*
None

*Requires code in //chrome?*
False

*Tracking bug*
https://b.corp.google.com/issues/499814382

*Launch bug*
https://launch.corp.google.com/launch/4468679

*Estimated milestones*

M150

*Link to entry on the Chrome Platform Status*
https://chromestatus.com/feature/5118934710878208?gate=5175566203486208

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