Keyword Density Checker

Features

• Single words, two-word and three-word phrases
• Stop-word filtering
• Density percentages against total word count
• Focus keyword tracking
• Over-optimisation warning

How to use it

1. Paste your content into the box.
2. Choose whether to look at words or phrases.
3. Enter a focus keyword to track it specifically.
4. Check the assessment for stuffing warnings.

Keyword density is a diagnostic, not a target

There is no optimal keyword density, and there has not been one for well over a decade. Google's algorithms moved to semantic understanding with Hummingbird in 2013 and BERT in 2019, which means they interpret what a page is about from context rather than counting term repetitions. Any guide quoting a magic figure like 2.5% is repeating advice that stopped being true a long time ago.

Where density remains useful is as a diagnostic. If your target term appears zero times, the page probably is not clearly about it. If it appears 40 times in 500 words, the writing is almost certainly unnatural, and that is a real risk, Google's spam policies explicitly name keyword stuffing, and the penalty is applied to pages that read as written for a crawler rather than a person.

The more useful signal in this table is the phrase list rather than the single-word one. Two and three-word phrases show what your content actually covers, and they often reveal that a page is unfocused, if the top phrases have nothing to do with each other, the page is trying to be about too many things. Modern SEO rewards covering a topic thoroughly with natural language, including related terms and synonyms, over hitting any repetition count.