Keyword Usage in SEO: Where Your Top Keywords Should Appear

What does keyword usage mean in SEO?

Keyword usage is where, and how naturally, a target word or phrase appears on one page. People often blur it with two neighbouring ideas. Keyword research is the earlier job of choosing the phrase, starting from a seed keyword, and keyword density is a ratio of repeats to total words. Usage is the placement, which is why keyword placement in SEO is the same question: does your focus keyword, also called the primary keyword or keyphrase, show up where it tells a reader what the page covers?

Those spots are the title tag, the meta description, the URL slug, the H1 to H3 headings, the first paragraph, the body copy, image alt text and link anchor text. Our table tests only three of them: the title tag, the meta description and the H1 to H3 headings.

Search engines match meaning as well as exact strings, so synonyms count too. Older advice calls these LSI keywords or semantic keywords, but latent semantic indexing is a decades-old retrieval method, and the label suggests Google works from a fixed list of required companion words. Related terms is the accurate way to put it. One thing no longer counts at all: Google's meta tags documentation on Google Search Central states that Google Search does not use the meta keywords tag for ranking or indexing.

A page about standing desks that says "standing desks" in its title, once in its description and in one H2 has sound keyword usage. The same page titled "Home" does not. Choosing the phrase in the first place is a separate job, and our keyword strategy guide covers it. Here we only look at where the phrase ends up.

Why keyword usage in SEO still matters

The title, the headings and the description are the lines people actually read, both in the results and at the top of the page. They are also the lines Google draws on when it builds a title link or a snippet. Google's title link documentation lists the title element, the H1 and other large, prominent text among its sources, and its meta tags documentation says the description may be used for the snippet in some situations. When those lines use the words a searcher typed, the topic is obvious in a couple of seconds.

Results often show the query words in bold inside the snippet, which makes a result look relevant at a glance. Google builds snippets mostly from the page text and uses your description only when it judges it a better summary, so a description that plainly names the topic gives it a good candidate.

Google's SEO Starter Guide takes a measured line. It tells owners to think about the words a searcher would use, says exact terms aren't required because Google's language matching can relate a page to many queries, and warns that repeating the same words over and over, even in variations, tires readers and runs against the spam policies. That over-optimization hurts readability long before it helps.

Our table shows the words your page really repeats, which is not always what you intended. If the top rows are menu items or your brand name, the copy isn't saying what you think it says. Good usage won't rank a weak page, but it removes one avoidable mismatch.

How SEO Site Checker tests your keyword usage

The Keywords Usage card is a word frequency table with a placement check attached, one part of our wider SEO audit. It describes the page rather than grading it.

The exact rule: Our audit takes the rendered page text, keeps the 50 most frequent words of three or more characters after removing common stop words, and checks each word as a plain substring of the lowercased title, the description meta tag and the joined H1 to H3 text. The card always passes, so a cross is advice and never a failure.

What the report reads

Our audit opens your URL in headless Chromium, waits for the load event and parses the rendered DOM, so content that scripts add before that event is included. Menus, footers, cookie notices and sidebars count together with the article.

The text is lowercased and every character that isn't a letter from a to z, a digit or whitespace is deleted, without a space being added in its place. That turns e-commerce into ecommerce and don't into dont. After the split into words, tokens of two characters or fewer and 52 common stop words are dropped. The 50 most common words survive with their counts. Script, style and template text is left out.

How a word gets a tick

Each of the 50 words gets three plain substring tests, with no stemming and no word boundaries. The Title column looks inside the lowercased title text. The Description column looks inside the content of the meta tag whose name is exactly the lowercase word description. The Headings column looks inside the joined, lowercased text of every H1, H2 and H3 on the page.

A few details decide whether a tick appears. A title element that contains child tags reads as empty, so every row shows a cross in that column. When the head has no title, the first title element anywhere in the page, such as one inside an inline SVG, is used instead. Only the first description tag is read, so an empty first tag hides a filled second one, and name="Description" with a capital letter is not found.

Because the match is a substring, a short word also ticks inside a longer one: seo inside seoul, or market inside marketing.

On screen, the table has four columns: the word with its count in brackets, then Title, Description and Headings, each with a green tick or a red cross. It opens collapsed to a short view, so press Show More to see all 50 rows.

Blind spots to know about

Words with hyphens or apostrophes tend to show false crosses. The page text loses those characters but the title keeps them, so ecommerce never matches e-commerce. Accented letters are cut apart, so a word like cafe with an accent on the last letter becomes caf. Pages in non Latin scripts, which rely on Unicode characters outside a to z, return few words or none.

Headings that contain inline tags are read with no separator, so a heading with a bold word in the middle is joined into one long string and can match by accident. Brand and menu labels can fill much of the top 50, and plurals and singulars get separate rows. The card never reads og:description, H4 to H6, image alt text or the URL.

Run it on any public page with the free SEO score checker.

How to read your keyword usage table

Start with the first five rows before you edit anything. If they don't describe your topic, the copy has drifted or site wide words dominate. Then read the ranks, not the raw counts, because a long article repeats words more often than a short one and the report sets no ideal count.

Take an invented top five for a standing desk shop, with no real data behind it. Shipping (58) and cart (19) are site wide words, so leave them. Desk (41) ticks in Title only, standing (33) ticks in Title and Headings, and adjustable (22) has three crosses. Fix desk first, because the highest ranked topic word misses two columns, then adjustable.

How to fix keyword usage gaps, step by step

Work from the page's purpose outward, so you don't rewrite tags for a phrase you later decide to change. That order is the practical core of on-page keyword optimization and it works on any platform.

1. Name the page's single job. Write the one sentence the page answers and pick one primary phrase for it. If two of your pages answer the same sentence, merge them or separate their angles before you edit anything.
2. List the real gaps. Run the free check and note the topic words that carry a cross. Skip the site wide words, as the reading table above explains.
3. Rewrite the title. Put the primary phrase near the start and keep it readable. Roughly 50 to 60 characters is a display rule of thumb, not a Google limit. Our meta title guide covers the full rules.
4. Rewrite the description. Use one or two plain sentences of about 120 to 155 characters, with the phrase once and a reason to click. Google sets no hard length and may rewrite it, so write for people. See our meta description guide and the Lighthouse meta description audit, which asks for a specific, unique description without keyword overload.
5. Adjust the headings. Use one H1 that carries the phrase, then H2 and H3 headings built from variations and related words.
6. Edit the body last. Say the phrase in the opening paragraph, then write naturally with synonyms. Read the page aloud and cut any sentence that only repeats it.
7. Publish and compare. Republish, clear any page cache and run the check again. Expect the site wide words to keep their crosses, and judge the result by the topic words only.

Where to put your main keyword on a page

The table below shows where to put keywords on a page, including the places our report doesn't test. The right-hand column marks where your own checking has to take over.

The MDN heading elements guide from MDN Web Docs recommends a single H1, no skipped levels and no headings used only to make text bigger. Google's SEO Starter Guide says out of order headings don't matter to Google Search. Order still helps people using screen readers move through a page, which is reason enough to keep it tidy. The WHATWG HTML Standard defines the elements, and our headings guide covers the H1 to H6 rules in detail.

Keyword usage examples: before and after

A before and after pair shows the pattern faster than rules do. The page below is invented for illustration and no real data or ranking claim is attached to it. It is a standing desk page as many small shops publish it, with generic tags that say nothing about the product.

<title>Home</title>
<meta name="description" content="Welcome to our store">
<h1>Welcome</h1>

The body repeats the word desk constantly, so desk tops the table with three crosses. Here is the same page with its tags rewritten.

<title>Standing Desks for Small Offices | Northline Furniture</title>
<meta name="description" content="Compare height adjustable standing desks that fit small offices, with sizes, weight limits and assembly notes listed up front.">
<h1>Standing desks that fit a small office</h1>
<h2>Height adjustable frames explained</h2>
<h2>Choosing a desk for a small office</h2>

Notice that the title and the H1 agree without being identical, and that the H2 headings use related words. Because the check is a substring match, the singular desk ticks inside the plural desks.

Keyword usage mistakes to avoid

Warning: Don't push the phrase into the title, the description and every heading just to collect ticks. Google defines keyword stuffing as filling a page with words to manipulate rankings, and its Google spam policies treat it as spam.

• Forcing filler words into the title. Only topic words need a tick. Menu labels and your brand name can keep their crosses.
• Filling the meta keywords tag. Google doesn't use it, so the effort is wasted.
• Trusting a false cross. Hyphen, apostrophe and accent words can show a cross on a fine page, so check the source first.
• Thinking in exact match keyword terms only. A partial match, a synonym, a plural or the way people phrase a question all count as well.
• Aiming one phrase at several pages. Pages with the same primary phrase compete with each other, a problem usually called keyword cannibalization.

Keyword usage best practices that hold up

• Write for the reader first. Check the table second, as a proofreading aid.
• Give each page one primary phrase. Add a few secondary keywords that share its intent, including long-tail keywords when they fit, because broad head terms alone rarely match what a searcher means.
• Mine your real queries. The Search Console performance report lists the queries that already bring your page up in results, which is better evidence than a guess about which words to use. Rare queries are left out.
• Align the title and the H1 without cloning them. Each should add a little.
• Vary your subheadings. Use variations and related words in H2 and H3 headings instead of copies of the phrase.
• Keep the description honest and specific. The click should lead to what the snippet promises.
• Re-run the check after big changes. A redesign, theme change or bulk edit can silently remove a heading or a tag.

Where to edit the title, description and headings on common platforms

Every site builder keeps the three fields somewhere different, and menu names change between versions, so look for the nearest match.