The trust signal Google won't name: long clicks

The question: when the 2024 antitrust disclosures revealed Navboost, did they reveal a trust mechanism hiding in plain sight?

Arguably yes. Navboost, per testimony in the U.S. v. Google proceedings, aggregates click signals — and specifically the distinction between 'good clicks' and 'bad clicks,' where a long dwell with no pogo-stick back to results reads as satisfaction. This is not labeled a trust signal, but functionally it is one: users staying with content correlates with content that earned their confidence.

The supporting logic: trust is, behaviorally, willingness to keep relying on a source. Dwell, return visits, and branded re-searches operationalize that willingness without any need to parse credentials. A system that rewards satisfied long clicks is rewarding earned trust by proxy.

The counter-evidence is sharp. Click satisfaction is confounded by presentation, headline accuracy, and load speed — a page can earn long clicks by being merely adequate and well-formatted, not trustworthy. Engagement and trust correlate but are not the same construct, and conflating them is a known error.

Caveat: these signals are aggregated across many users over time and are heavily denoised. Individual or small-sample manipulation has historically been detectable and devalued; this is not a button you press.

What we still don't know: how Navboost-style signals interact with the explicit quality systems. The disclosures confirmed existence and rough function; they did not reveal how click data is reconciled against link and content signals when the two disagree.