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Keyword Density & Readability Checker
See the top keywords on any page, their density, plus word count and Flesch readability — and learn what those numbers actually mean for rankings. Free, no signup.
What keyword density can — and can't — tell you
There is no magic percentage that ranks a page, and stuffing a phrase to hit one is a reliable way to read as spam. Density is useful as a diagnostic: if the topic you want to rank for barely appears in the text, the page probably isn't really about it; if one phrase towers over everything else, it likely reads unnaturally. This tool extracts the visible text from any URL, counts the top terms with stop-words filtered out, and adds readability scores so you see both what the page emphasizes and how hard it is to read.
Reading the readability numbers
Flesch reading ease of 60–70 is plain English — a good target for most commercial content. Readability isn't a direct ranking factor, but pages people actually finish send better engagement signals, and AI assistants quote clear, direct sentences far more readily than dense ones. Pair this with the full page check to see whether the page's title, headings and meta match the topic its text actually covers.