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SEO topics & testing results
Evidence-led writing on SEO, and our own controlled experiments — published with their method, sample, and date.
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How we run a controlled SEO experiment
Correlation shows where to look; a controlled test shows what actually moved. The single-variable method RankGear uses to turn a hunch into evidence — one change, isolated across independent pages, read on a live leaderboard.
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Correlation vs causation in SEO: how to read a ranking-factor study
A ranking-factor study shows two things moving together — not one causing the other. How to read those correlations without overclaiming, and where evidence ends and proof begins.