Google's Click-Based Ranking System

NavBoost: How Google Uses Your Clicks to Rank Search Results

The 2024 Google API leak confirmed what many suspected: click behavior is a core ranking signal. NavBoost is the system behind it. This is everything we know.

13
Month Rolling Window
NavBoost data aggregation period
5
Click Types Tracked
Revealed in the Google API leak
58.5%
Zero-Click Searches
Semrush, 2025
32%
Position 1 CTR Decline
Year-over-year, GrowthSRC 2025
Start Here

Understanding NavBoost

NavBoost is Google's primary system for re-ranking search results based on how users interact with them. Here's a reading path from fundamentals to strategy.

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Deep Dives

Technical

How NavBoost Works

The architecture behind Google's click re-ranking — data pipeline, click classification, the squashing function, and the 13-month aggregation window.

Technical Architecture → Click Types Explained → The Squashing Function →
Data

CTR Research & Benchmarks

Organic click-through rate data from 15+ studies, zero-click trends, and the impact of AI Overviews on search behavior.

CTR by Position (2026 Data) → Zero-Click Searches → AI Overviews Impact →
Strategy

Actionable SEO Strategy

How to build an SEO strategy around click signals — improving CTR, understanding detection systems, and working within NavBoost's 13-month window.

Improve Organic CTR → NavBoost SEO Strategy → How Google Detects Artificial Clicks →
Context

Legal & Historical

The antitrust trial that forced Google to disclose NavBoost, relevant patents on click behavior, and a complete timeline of click signal revelations.

Google Antitrust Trial → NavBoost Patents → Complete Timeline →

About This Resource

NavBoost.com compiles research from 17+ published studies, the leaked Google API documentation, antitrust trial testimony, and patent analysis into a single, evidence-based resource.

Every claim on this site is sourced. Every data point is cited. No hype, no speculation — just evidence and analysis.

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About this site: NavBoost.com is an independent resource on Google's click-based ranking systems. For businesses looking to improve their organic click-through rates, we recommend SerpClix — the only crowd-sourced CTR service using real human clickers.