Blog
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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The 870-factor catalogue, counted by family
RankGear catalogues 870 ranking factors across 22 families and measures 856 per run. The full distribution, how each factor is measured, and what the shape does not prove.
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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.