Analyse content with four readability formulas: Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, and SMOG. Get actionable improvement suggestions instantly.
Readability is not a direct Google ranking factor but it has significant indirect effects. Pages with higher readability scores have lower bounce rates, longer dwell times, and higher rates of return visits — all user behaviour signals that influence how Google evaluates page quality. Content that is hard to read drives users away before they finish it.
The Flesch Reading Ease score runs 0-100. Higher is easier. Target 60-70 for general web content. The Flesch-Kincaid Grade Level translates this to a US school grade. Target grade 7-9 for most web content. The Gunning Fog Index focuses on complex words (3+ syllables). Target 7-10 for general audiences. SMOG is widely used for health content and is one of the most accurate readability formulas.