Writing tool
Keyword Density and SEO Analyzer
Paste text or fetch a page to see keyword density for one, two and three word phrases, title and meta checks, heading structure and a readability summary.
Pasted text is analysed in your browser and never uploaded. If you enter a URL, our server fetches that one public page to read it; nothing is stored.
Fetch a page (optional)
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Paste some text or fetch a page to see the analysis.
How to use the keyword density and seo analyzer
Check what your page really says
Search engines read your page as words. This analyzer shows which words and phrases you repeat most, whether your target keyword appears where it matters, and whether the basics around the text are in place.
Two ways to use it
- Paste text. Drop in a draft, then optionally add the title tag and meta description you plan to use. Everything runs in your browser.
- Fetch a URL. Enter a public page address. The tool reads the page's title, meta description, headings and body text (navigation, footer and forms are ignored) and analyses them in one go.
What you get
- Phrase density. Tabs for one, two and three word phrases with counts and percentages. A single word at 4 percent of all words is a sign of repetition worth a second look.
- Target keyword check. Type the phrase you want to rank for and see its count, density and whether it appears in the title, meta description, H1 and the first 100 words.
- Page checks. Title length, meta description length, one H1, subheadings and content length, each with a clear pass, warning or fail.
- Readability summary. Flesch Reading Ease, grade level and average sentence length, with a link to the full readability checker.
Reading the numbers
Density is the phrase count divided by the total number of words (or phrases of that size). Treat 0.5 to 2 percent as comfortable for a main keyword. If one phrase passes 3 percent, rewrite some mentions using synonyms or more specific wording. Natural variety helps both readers and ranking.
A simple workflow
- Write for people first and finish the draft.
- Run the analyzer and pick one primary phrase and a couple of secondary ones from the lists.
- Make sure the primary phrase appears in the title, the H1 and early in the text, without repeating it unnaturally.
- Fix any failed checks, then re-run until the page reads well and the checks pass.
Limits
The tool analyses one page at a time and cannot see rankings, links or competitors. Pages built entirely with client-side JavaScript may return little text. For a site-wide review, use the website audit checker and the broken link checker.
Frequently asked questions
What is a good keyword density?
There is no magic number. For a main phrase, roughly 0.5 to 2 percent usually reads naturally, and above 3 percent starts to look forced. Search engines judge meaning, so use the density as a warning against stuffing, not as a target to hit.
Does the tool send my pasted text anywhere?
No. Pasted text is analysed in your browser. Only when you enter a URL does our server fetch that public page, and the result is not stored.
Why are some words missing from the phrase lists?
Single words skip common stop words such as "the" and "and", and two or three word phrases cannot start or end with one. Phrases also need to appear at least twice, otherwise the lists would be full of one-off combinations.
Which pages can the URL option fetch?
Public http and https pages only. Private addresses, login-protected pages and pages that need JavaScript to show their content cannot be read, because the tool reads the HTML the server sends, up to 1 MB.
How are title and meta description lengths judged?
Titles of 30 to 60 characters and descriptions of 70 to 160 characters fit most search result layouts. The real limit is pixel width, so treat the figures as a guide and preview important pages.
How is this different from the word counter?
The word counter measures length and reading time for general writing. This tool is built for SEO: n-gram phrase density, keyword placement in the title, description and H1, page-level checks and a readability summary.