Search API Leaks Prove Internal Links Siphon NavBoost Click Signals to Mid-Ranking Pages
Conventional wisdom treats authority as a domain-wide backlink metric, but the 2024 Search API leak and DOJ antitrust trial documents prove authority operates heavily at the page level via NavBoost.
The algorithm tracks goodClicks, badClicks, and lastLongestClicks across a rolling 13-month window.
It measures user satisfaction by isolating the final click before a search session ends.
PageRank dictates how searchers land on a page, while NavBoost monitors what they do once they arrive, locking the two systems in a constant feedback loop that updates page-level authority.
Practitioners exploit this architecture by mapping their "power pages"—URLs already accumulating strong NavBoost signals through organic search clicks.
Specialists deploy internal links from these proven assets directly to target URLs hovering just outside high-visibility positions.
This configuration forces Google to crawl target pages through the lens of established user-satisfaction signals, transferring click-driven authority rather than standard link equity.
The mechanism fails completely if deployed on dead inventory.
Routing a link from a high-click page to a URL buried at position 100 wastes the signal.
The target page must already sit near the top of the SERP to capitalize on the transferred weight.
Furthermore, raw CTR manipulation fails to replicate this boost.
NavBoost applies a squashing function to normalize unnatural click spikes, demanding genuine session-ending clicks to sustain the ranking improvement.