Keyword Density Checker

About the Keyword Density Checker

This checker breaks content into words, filters out roughly 40 common stopwords like "the" and "and," and ranks what's left by how often each term shows up, so it's easy to see at a glance which words actually dominate a piece. Set a focus keyword and it's matched as an exact phrase against the full, unfiltered text, then measured against a density range to flag under-use on the low end or stuffing on the high end. Both the word table and the focus keyword score update on every keystroke, so the effect of rewriting a sentence or swapping a word choice is visible immediately rather than after a manual recount.

Keyword density isn't a real ranking factor, and Google says so directly

The "1-2% ideal density" figure that gets repeated across SEO blogs isn't a number Google has ever confirmed as a ranking input, and Google's own documentation explicitly recommends writing naturally for readers rather than hitting a percentage target. This tool still measures density because it's a useful sanity check in the other direction, a piece sitting at 6-7% density for one phrase almost always reads awkwardly to an actual human, which is the real problem keyword stuffing causes, not some invisible ranking penalty. Treat the badge here as a readability signal, not a scoring system to optimize against, chasing a specific percentage tends to produce worse writing than just checking whether a draft reads naturally out loud.

How the count actually works

The focus keyword is matched as an exact, case-insensitive phrase, "seo tool" and "SEO Tools" count as the same phrase, but "seo tool" and "seo tools" don't, since the plural is a different word token. That's worth knowing before assuming a low count means the term is genuinely underused, if a page mixes singular and plural forms, or a keyword and a close variant, the real combined usage is higher than any single search here will show. Running the same content through the Keyword Extractor alongside this tool gives a fuller picture of every distinct term actually being used, not just the one being searched for.

Multi-word phrases work the same way as single words, "content marketing strategy" is treated as one unit and only counted where all three words appear together in that exact order, not as three separate word counts added up.

Reading the top-words table

The word-frequency table below the focus keyword result surfaces the top 15 non-stopword terms sorted by count, without needing a specific keyword in mind first. It's often more useful for spotting an unintentional pattern, a word repeated so often out of habit that it starts crowding out variety, than the focus-keyword check is, since it shows what's actually dominating the text rather than checking a single assumption about it. A blog post that turns out to lean heavily on a word like "great" or "amazing" a dozen times, for instance, is a sign worth catching in an edit pass regardless of what it does for search rankings.

A quick way to use this while drafting

Paste a draft in before publishing, glance at the top-15 table first to catch any word that's clearly overused, then set the actual target phrase to check its count. If the target phrase doesn't appear in the top 15 at all despite being the main topic, that's usually a stronger signal than the density percentage itself, it suggests the piece talks around the subject without directly naming it very often, which can read as vague even before considering search visibility. Conversely, a focus keyword that dominates the top-15 list alongside a density well above 4% is the pattern most associated with content that reads as stuffed rather than written for a person.