Keyword density

Keyword density is no longer a ranking factor in itself, but it still helps spot two extremes: a text that never mentions its topic, and one that repeats it until it sounds artificial.

The list of most frequent words is often more revealing still.

Exact occurrences of the keyword are counted, normalising accents and case, and expressed as a share of the text. The ten most repeated words of four letters or more are also listed.

There is no optimal density

It is one of the most persistent myths in search optimisation. There is no magic percentage, and Google has not used word repetition as a direct relevance signal for over a decade. Modern engines understand synonyms, variants and context, so forcing a figure only makes the text worse.

What is penalised is stuffing

Repeating a phrase unnaturally to manipulate rankings is expressly covered as a practice contrary to the guidelines. The line is not a number: it is whether the text sounds forced to a human reader. If it grates when read aloud, there is too much repetition.

So what is measuring for

As a diagnostic, not a target. Seeing a word appear thirty times in a thousand usually reveals thin writing; seeing the main term appear not at all may indicate the page does not make clear what it is about. It is a warning sign at both extremes.

Write for the reader

Covering the topic well, answering the real questions and using the natural vocabulary of the field works better than any density calculation. Synonyms and variants count as much as the exact phrase.