Herramienta de densidad y consistencia de palabras clave

La Herramienta de Densidad y Consistencia de Palabras Clave analiza tu contenido para asegurar un uso óptimo de palabras clave y consistencia para un mejor rendimiento SEO.

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About Keyword Density & Consistency

What is keyword density?

Keyword density is the proportion of a page made up by a given word or phrase. If a term appears twelve times in a thousand word page, its density is 1.2 percent. It is a simple measurement of how much of your writing is devoted to a particular idea.

For a long stretch of SEO history it was also treated as a dial to be tuned, with advice circulating about ideal percentages to aim for. That framing has aged, but the underlying measurement has not stopped being informative, and reading it tells you something real about a page that is difficult to judge by rereading your own writing.

What a keyword density tool is genuinely good at is revealing surprises. A page that turns out to be dominated by a term you did not intend, or one where the phrase you are targeting barely registers, is a page that will not perform the way you expect.

What is keyword consistency?

Keyword consistency is the related but distinct question of whether the words your page uses most also appear in the places that describe it: the title tag, the headings, the meta description. It is a coherence check rather than a frequency count.

A page where those agree is clearly about something. A page whose title promises one topic while its body discusses another is difficult to place, for a reader deciding whether to stay and for a search engine deciding what the page is for.

This is usually the more actionable of the two measurements, because the fix is concrete. When the body text and the tags disagree, one of them is wrong, and you generally know which.

Does keyword density still matter in 2026?

As a target to write toward, it has lost most of its relevance. Search engines moved from counting words to understanding topics some years ago, and writing to hit a percentage tends to produce text that reads awkwardly without earning anything in return.

As information, it remains genuinely useful. Density describes what a page emphasises, and emphasis is still meaningful even when no specific figure is being rewarded. That is why the measurement has outlived the advice built around it.

The shift is really one of purpose. Density used to be treated as a lever to pull; a keyword density tool is better understood now as a reading of what you have already written, and most useful at the point where a page is not performing and you want to know why.

How keyword use relates to AI search

Models match meaning rather than exact strings, so repeating a phrase buys nothing on its own. What helps is covering a topic with the vocabulary that genuinely belongs to it, including the related terms and synonyms a knowledgeable writer would reach for without thinking.

Density readings are still informative in that context, just read differently. A page with healthy coverage of a subject tends to show a spread of related terms rather than one phrase repeated; a page showing a single dominant term and little else usually reads as thin.

Consistency matters more directly. When the headings, title and body all point at the same subject, a passage extracted from the page arrives with its context intact, which makes it easier to quote accurately.

Keyword best practices

Write for the reader first, then check the important terms are actually present.
Use the words the topic requires, including natural variations and related terms.
Make sure the title, headings and opening paragraph agree on the subject.
Give each page one clear topic rather than several competing ones.
Read density as a description of the page rather than a figure to hit.
Treat an unexpectedly dominant term as a signal that the page has drifted off subject.

What this tool checks

The keyword density tool extracts the terms your page uses most and shows how prominent each one is, then compares that list against the title, headings and meta description, passing when enough of them line up.

It measures emphasis and overlap rather than writing quality, and it cannot tell whether the topic you are consistent about is one worth targeting. A page can be perfectly coherent about a subject nobody searches for, which is a research question rather than an on-page one.

Where to go next

Consistency is a relationship between the body text and the tags that describe it, so it is worth checking both ends. Review the title tag checker and the meta description checker the page is being measured against, confirm the header tags agree on the subject, and use the keyword generator to see which terms your text signals most strongly.

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