Pujan Kumar Saha
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SEOSeptember 23, 2026 · 10 min read

How Many SEO/AEO Keywords Should I Use?

Pujan Kumar Saha

Pujan Kumar Saha

Digital Marketing Consultant & SEO Specialist

How Many SEOAEO Keywords Should I Use

"How many keywords should I target?" sounds like a question with a clean numeric answer, the kind of thing you could look up once and apply forever. It isn't, and the honest reason why is that the question actually contains three or four different questions bundled together. How many keywords belong on a single page? How many should a whole website realistically target? How many new ones should you add each month? And, increasingly, does "counting keywords" even make sense anymore now that a growing share of searches get answered by AI instead of a list of results?

This piece works through all four, with real numbers at each level, and then gets into why AEO changes the calculation in a way most keyword advice hasn't caught up with yet.

The Old Mental Model That's Causing the Confusion

A lot of the confusion around this question traces back to an era of SEO that, frankly, doesn't work anymore. There used to be a real strategy built around stuffing a page with a target keyword as many times as possible, on the theory that repetition signaled relevance to search engines. That approach hasn't worked for years, and modern search algorithms actively penalize content that reads like it was written for a crawler instead of a person. The lingering habit it left behind, treating "how many keywords" as a density question, a number you hit and then stop, is the wrong frame entirely. The real question was never how many times you can say something. It's how many genuinely distinct things you're trying to be found for, and how clearly you're covering each one.

For a Single Page: One Primary Keyword, a Few Supporting Ones

At the individual page level, the guidance across current SEO research is remarkably consistent, and it's more specific than most business owners expect.

A single page should target exactly one primary keyword, and roughly three to five secondary keywords that share the same underlying search intent. The primary keyword defines what the page is fundamentally about, it usually shapes the title, the URL, and the main heading. The secondary keywords are close variations, synonyms, and related phrasings that a genuinely thorough page on that topic would naturally cover anyway, things like "SEO pricing" and "SEO cost" living comfortably on the same page, since anyone searching either term wants the same underlying answer.

There's a practical ceiling worth knowing too: most current analysis puts the realistic limit at around five to seven meaningful keyword phrases for a substantial page, something in the 1,500 to 2,000 word range. Beyond that point, a page usually stops reading like a focused, authoritative answer and starts reading like a list of loosely related ideas stitched together to chase search volume. If you find yourself wanting to target a tenth keyword on the same page, that's usually a sign the page is trying to be two or three separate pages at once.

Why Piling On More Keywords Usually Backfires

The instinct to add more keywords to a page comes from a reasonable place, more keywords feels like more chances to be found. In practice, it tends to produce the opposite result, through a problem called keyword cannibalization.

Here's the mechanism: if two pages on your own website both target the same or very similar keyword, search engines don't rank both of them well, they split their evaluation between the two, and both end up ranking lower than a single, well-consolidated page would have on its own. The same thing happens inside a single overloaded page. When a page tries to be the definitive answer to five unrelated questions, search engines struggle to identify which single question it's actually best suited to answer, and it often ends up ranking modestly for several searches rather than strongly for the one or two it was genuinely built to win. One clearly focused page reliably outperforms one page stretched thin across too many targets, and it outperforms two competing pages even more clearly.

For a Whole Website: Think in Clusters, Not a Master List

Once you move from a single page to an entire website, the right mental model changes completely. Instead of a master spreadsheet of every keyword you'd like to rank for, current SEO strategy is built around topic clusters, a central pillar page covering a broad subject thoroughly, supported by a set of more specific pages, often called cluster or spoke pages, each covering one distinct subtopic in real depth.

A well-built cluster typically includes somewhere between eight and twelve supporting pages around a single pillar topic, each one internally linked back to the pillar and to relevant sibling pages. This structure does two things a scattered list of keywords never could. It signals genuine topical authority to search engines, since a site that covers a subject from eight or ten different angles looks far more credible on that topic than one with a single shallow page. And it naturally avoids cannibalization, because every page in the cluster has an explicitly different job, rather than several pages quietly competing for the same search.

How Many New Keywords Should You Actually Target Each Month?

This is the pacing question, and the honest answer depends entirely on how much genuinely well-researched content you can realistically produce, not on an arbitrary target pulled from a template. A business publishing two to four well-optimized pieces a month is typically adding somewhere around six to fifteen new keyword targets in that same window, once primary and secondary keywords per page are counted together. Trying to move faster than your content quality can support, chasing twenty or thirty new keywords a month with thin, rushed pages, usually produces worse results than a slower, more thorough pace, since a handful of genuinely strong pages will consistently outperform a larger number of mediocre ones.

The AEO Twist: Why "How Many Keywords" Is Almost the Wrong Question Here

Everything above still holds for traditional search rankings, but AEO genuinely changes the shape of this question, and it's worth understanding why rather than just applying the same keyword-counting logic to AI answers.

AI systems like ChatGPT, Perplexity, and Google's AI Overviews aren't matching a query against a database of keywords the way traditional search once did. They're identifying entities, the actual concepts, organizations, products, and ideas your content is about, and evaluating whether your content answers the full, conversational question a person actually asked, not a fragment of it. Someone searching in the old model might type "SEO pricing." The same person using an AI tool is more likely to ask something like "what should I realistically expect to pay for SEO for a small business with a modest budget," a full question layered with context and constraints, not a keyword fragment at all.

This has a genuinely counterintuitive effect on how you should think about "keyword count" for AEO: a single, comprehensive page that thoroughly covers an entity or topic can end up cited across dozens of differently phrased questions, without ever having been built around a specific keyword list at all. The goal shifts from covering more keywords to covering one topic so completely, with direct answers, clear structure, and genuine depth, that it naturally satisfies a wide range of question phrasings a keyword-counting approach would never have anticipated. Research tracking AI Overview citations found that roughly 55% of citations pull from the first 30% of a page's content, which reinforces the same point: what matters most is a clear, direct, well-structured answer near the top of comprehensive content, not a wider spread of keyword variations scattered throughout.

Practically, this means FAQ sections, direct-answer paragraphs, and clearly labeled subheadings phrased as real questions matter more for AEO than expanding your keyword list ever will. We've covered the deeper mechanics of this shift, including how structured data and entity clarity factor in, in our guide to how AI search is transforming SEO strategy, which pairs well with the keyword-level guidance here.

A Practical Framework for Deciding Your Own Number

Pulling all of this together into something you can actually apply: start each page with exactly one primary keyword, add three to five closely related secondary keywords that share the same intent, and stop there rather than reaching for a tenth. Zoom out to the site level and organize those pages into clusters of eight to twelve around each major topic your business needs to own, rather than treating your keyword list as one long undifferentiated spreadsheet. Pace new keyword targets to match your realistic content capacity, somewhere around six to fifteen a month for most small and mid-sized businesses, rather than an arbitrary number that outpaces the quality you can actually deliver. And for anything meant to perform in AI-generated answers, stop counting keywords for that content entirely, and instead ask whether the page answers the full range of real questions a person would actually ask about that topic, in their own words.

Wrinkle Worth Planning For

Keyword strategy in carries one genuine complication that a lot of general SEO advice doesn't account for: many searches happen in Bengali, English, or a mix of both, depending on the platform and the person. This doesn't mean doubling your page count for every topic, a Bengali and English version of the same intent usually belongs together as secondary keyword variations rather than as two entirely separate pages competing with each other. It does mean your secondary keyword research needs to genuinely include both languages rather than defaulting to English alone, since a meaningful share of real search volume for any given topic is likely split across both. Individual keyword search volumes in the market also tend to run lower than in larger markets, which makes the long-tail, cluster-based approach described above even more valuable here specifically, since a broader spread of specific, well-targeted long-tail terms is often the only realistic way to add up to meaningful total traffic in a market this size.

The Bottom Line

There was never going to be a single clean number that answers "how many keywords should I use," because the honest answer changes depending on whether you're looking at one page, a whole website, a month of work, or a piece of content meant to perform in an AI-generated answer. What holds constant across all four is the underlying principle: focus and genuine depth on a clearly defined topic consistently outperforms breadth chased for its own sake, whether you're counting keywords for a search engine or thinking in entities and questions for an AI one.

Frequently Asked Questions on Keywords Selections

Is there a hard maximum number of keywords I should ever put on one page?

Not a hard rule, but current research consistently points to around five to seven meaningful keyword phrases as a practical ceiling for a substantial page, one primary keyword plus three to five closely related secondary ones. Beyond that, a page usually starts losing focus rather than gaining reach.

What happens if two of my pages target the same keyword?

This causes keyword cannibalization, where search engines split their evaluation between the competing pages instead of ranking either one strongly. The fix is usually consolidating the two pages into one comprehensive page, or clearly redefining each page's angle so they no longer compete for the same search.

Do I need a completely different keyword strategy for AEO than for traditional SEO?

Not a completely different strategy, but a different emphasis. Traditional SEO still benefits from the primary and secondary keyword structure described above. AEO additionally rewards comprehensive, question-answering content structured around entities and full conversational queries, which often matters more for AI citation than expanding your keyword list further.

How many keywords should a small business realistically target in its first year of SEO?

This depends heavily on content capacity, but a common realistic pace is six to fifteen new keyword targets a month, which over a full year of consistent work builds into a substantial, well-clustered set of pages covering a business's core topics thoroughly rather than thinly.

Should I target keywords in both Bengali and English separately?

Generally, group them together as secondary keyword variations on the same page when they share the same search intent, rather than building entirely separate pages for each language. Just make sure your keyword research genuinely covers both languages rather than defaulting to English alone.

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