Free Keyword Density Checker

You hit publish. Then the doubt creeps in — did I say that word too many times? Or barely enough? Reading it back never settles it, especially if the draft started out as an AI-generated outline. If you ran your text through our AI Text Cleaner first to strip out robotic phrasing, this is the natural next step: this tool works as both a keyword density checker and a keyword stuffing checker — free, with no account required.

What Is Keyword Density?

It's a ratio. Count how many times your target phrase appears, divide by total words, multiply by 100. That's it.

Use a keyword 15 times in a 1,000-word article and your density sits at 1.5%. Simple math — but the number tells you something real.

Search engines don't just check that a phrase exists on your page; they read how naturally it fits the surrounding sentences. Mention it too rarely and Google may never connect your page to that topic. Push it into every paragraph and you trip the opposite wire — the kind that buries pages or pulls them from results entirely. The goal isn't a perfect figure. It's writing that reads like a human wrote it.

How to Check Keyword Density of a Website

Paste Your Text

No setup, no login, nothing to install. Paste your draft straight into the text box above and the report builds in seconds. You can also type directly, and the tool updates in real time so you can adjust anything that looks off as you go.

Read the Numbers

You get more than a single percentage:

• Total keyword count, plus phrases grouped by length — single words, two-word, and three-word combinations — each with its own frequency and density percentage
• An instant view of which words dominate your content
• Flags showing whether your target phrase appears in the title tag, meta description, H1, H2, and H3
• A tag cloud so you can see at a glance which words dominate the page

It's not just "here's a stat." It's a map of whether your keywords are landing in the right spots.

Why the Tool Breaks Results Into 1-Word, 2-Word, and 3-Word Phrases

A single-word count only tells you so much. If "shoes" sits at 2% density, that looks fine on its own — but it says nothing about how those mentions actually combine on the page. That's why the report splits results into three separate tiers instead of one flat number.

Single-word density shows which individual terms dominate your content. It's a quick read on your broad topic, but it can mislead on its own — common connecting words get filtered out automatically, and a word can appear often for reasons that have nothing to do with your target keyword.

Two-word phrases (bigrams) catch the combinations that matter more for ranking — things like "running shoes" or "keyword density." This is usually closer to how people actually type a search, and it's where phrase-level repetition first becomes visible.

Three-word phrases (trigrams) surface longer, more specific combinations — "best running shoes" or "keyword density checker." These map closely to long-tail search terms, and they're also where stuffing hides best: a phrase can look completely healthy at the single-word level while its three-word form repeats far too often.

Check all three tiers side by side rather than just one. If your single-word density looks fine but a specific three-word phrase is showing up at 3%+, that's the pattern search engines are more likely to flag — and it's exactly what a single-word-only check would miss entirely.

What Is a Good Keyword Density for SEO and Blog Posts?

No magic number exists — and anyone handing you a precise figure is oversimplifying. That said, years of SEO testing across the industry point to a zone that works:

For blog posts specifically, staying between 1% and 1.5% gives you a clear relevance signal without triggering over-optimization filters. Longer articles naturally drift toward the lower end of that band — more total words means each mention carries less weight as a percentage. Google has said plainly that density isn't a direct ranking factor anymore; what it rewards is topical coverage that happens to land in this range naturally. Write for the reader first, then check the density after.

Keyword Stuffing — What It Is and Why It Always Backfires

Stuffing is the logic that says if one mention helps, thirty must help thirty times more. It doesn't. It does the reverse.

A 2024 leak of more than 2,500 pages from Google's internal Content Warehouse API confirmed something SEOs had long suspected: Google tracks page-level spam and quality signals well beyond simple keyword counts, including click quality and how natural your content reads compared to typical writing patterns. There's no single public "stuffing score" — despite what some blog posts claim — but the takeaway holds: pages that read as manipulated get pushed down or filtered out entirely.

Watch for these patterns in your own content:

• The same phrase turning up in almost every sentence
• Keywords dropped into places where the grammar falls apart
• A wall of keyword lists at the bottom of the page that exists purely for crawlers
• Terms hidden in the code where only bots can see them

Recognize any of those? Run the page through the checker before you publish. Fixing it now is faster than untangling it after a ranking drop.

Where Your Keyword Should Actually Appear

Density in the body text is only part of the picture. For the strongest relevance signal, your target phrase should appear naturally in:

• Title tag — earlier in the title is better
• Meta description — this affects click-through rates more than most people realize
• H1 heading — your main heading should plainly say what the page covers
• First paragraph — an early mention helps search engines lock onto your topic
• Image alt text — a natural home for keyword variations without forcing them
• Internal link anchor text — when other pages on your site link here, the anchor text matters

Use this checker to confirm your body-text density is balanced, then double-check that your keyword also appears naturally in each of the spots above.

How to Check Competitor Keyword Density

Grab the content from a competing page that ranks well, paste it into the checker and you get their full breakdown in seconds including two-word and three-word phrase frequencies.

Pay attention to the phrases they repeat most. If a competing page holds a top-three position for your target term, their keyword distribution is a live signal of what Google currently rewards in that niche. Run your own page through the same check side by side and close the gaps where your density is lower; pull back where it's higher.

To count total words in your content before checking density, use our free Word Counter — paste your draft and get an exact count in seconds.

Why This Matters More in the Age of AI Search

Search isn't just ten blue links anymore. By the end of 2025, roughly a third of Google searches were already showing an AI Overview — up from about a quarter just six months earlier, and the share keeps climbing (Comscore). ChatGPT alone now has more than 800 million people using it every week. That means part of your audience is no longer scanning ten blue links; a model is reading your page and deciding what to repeat back. Researchers at Princeton and Georgia Tech found that content with clear citations, solid statistics, and natural fluency can see up to a 40% lift in how often it gets surfaced in AI-generated answers. Balanced, naturally written content — exactly what this checker helps you confirm — is what both readers and AI engines reward.