How Many SEO Keywords Should I Use? Best Practices for 2025

When building a website or creating content, one question frequently arises: “How many SEO keywords should I use?” This question haunts both beginners and experienced content creators alike.

The truth is, no magic number guarantees SEO success.

But there are best practices that can help you rank for multiple keywords without falling into the trap of keyword stuffing.

Types of SEO Keywords

Before discussing numbers, it’s important to distinguish between different types of keywords: primary, secondary, and tertiary. Let’s discuss each in detail:

Primary Keyword

This keyword represents the main topic of your content. It’s your target keyword — the phrase you mostly want to rank for. For example, if you’re writing about coffee brewing methods, your main keyword might be “how to brew coffee.”

Secondary Keyword

The secondary keyword complements your primary keyword. It refers to related keywords that help search engines better understand your content’s context while allowing you to capture additional search traffic. 

Using our coffee example, secondary keywords might include “coffee brewing techniques” or “French press coffee method.”

Tertiary Keyword

This is your supporting keyword (sometimes called LSI keywords or semantically related terms). It further enhances your content by adding natural language variations that people might use when searching for your topic. 

LSI (latent semantic indexing) keywords are closely related to your primary and secondary keywords. For instance, with our coffee example, LSI keywords might include “coffee grounds,” “water temperature for coffee,” “coffee-to-water ratio,” “brewing time,” and “coffee extraction process.” 

These terms aren’t necessarily variations of your main keyword but are conceptually related to the topic and would naturally appear in comprehensive content about coffee brewing.

How Many SEO Keywords Should I Use?

Many SEO experts advocate for focusing on one primary keyword per page. This approach helps maintain clarity and prevents diluting your optimization efforts. When you try to optimize a single page for too many different keywords, you risk confusing both readers and search engines about the page’s central topic.

However, this doesn’t mean you should only include one keyword on your page. Rather, it suggests having one clear focus while supporting it with relevant keywords throughout your content.

So, what is the ideal number of keywords per page? 

There’s no specific formula that works for every situation. However, for a typical page or blog post (1,500-2,000 words), a balanced approach might include:

The exact number of keywords to focus on depends on several factors, including your content length, topic complexity, and competition level. Longer content naturally accommodates more keywords, while highly competitive keywords might require more focused optimization.

SEO tools like Ahref and Surfer SEO can provide a range of keywords to use in your content. In fact, Surfer SEO can specify the number of times each keyword should appear based on the competitor pages you want to outrank.

Is Keyword Density Outdated?

Keyword density — the percentage of times a keyword appears compared to total words — was once a major ranking factor. In the early days of SEO, experts often recommended specific keyword density percentages (like using your primary keyword for 2-3% of your total word count). 

In 2025, this metric has become less relevant as search engines now prioritize context and natural language over keyword frequency.

Rather than wondering how many times to use your primary keyword, focus on adding keywords naturally within high-quality content. Search engines can detect when keywords are forced into text, and this practice can negatively impact your rankings.

How Different Page Types Affect Keyword Strategy

The number of keywords to include on a page varies depending on the page type:

Homepage

Your homepage should target your brand name and 1-2 primary keywords that represent your core offering. As your site’s most authoritative page, it shouldn’t try to rank for too many different keywords.

Service/Product Pages

Each service or product page should focus on one primary keyword with 2-3 secondary keywords that describe specific features or benefits.

Blog Posts

Blog content allows for more keyword flexibility. A comprehensive blog post can effectively target one primary keyword and 5-10 secondary keywords, especially for long-form content.

Category Pages

They work well with broader keywords that encompass the products or content within that category, supported by more specific secondary keywords.

The Right Approach to Keyword Implementation in 2025

SEO is dynamic, and the way we implement keywords has changed dramatically. Gone are the days when stuffing a page with as many SEO keywords as possible would guarantee top rankings. 

In 2025, search engines like Google are prioritizing relevance, context, and user experience over rigid keyword matching.

Instead of obsessing over the exact number of keywords to include on a page, the best approach is to focus on strategic implementation. Here’s how to optimize your content effectively while keeping up with the latest SEO trends:

1. Prioritize User Intent Over Exact Keyword Matches

Search engines have become incredibly sophisticated in understanding what users truly want when they type a query.

This means that ranking well no longer depends on exact keyword repetition but rather on how well your content satisfies the searcher’s intent. There are four types of search intent:

When selecting keywords, ask yourself:

2. Create Comprehensive, High-Quality Content

One of the biggest SEO myths is that you need to optimize for a fixed number of keywords per page. In reality, long-form, in-depth content tends to rank for multiple keywords without deliberate optimization for each one.

Additionally, detailed content can earn you more backlinks and shares, as other websites are likely to reference it, boosting your site’s authority. Your site can even rank for semantic variations. Google’s algorithms understand synonyms and related phrases, so you don’t need to force every possible keyword.

3. Group Similar Keywords for Better Optimization

Keyword clustering is a smarter approach when conducting keyword research. It involves grouping similar keywords that align with the same user intent. Here’s how to group keywords effectively:

Step 1: Identify Your Core Topic (e.g., home workout routine)

Step 2: Find keyword variations using tools like Ahrefs, Semrush, or People Also Ask. You might discover keywords, such as:

Step 3: Group them by intent:

Step 4: Structure Your Content Around These Clusters

Why This Works:

This way, your content ranks for multiple keywords while staying natural and engaging.

4. Focus on Topics, Not Just Keywords

Google’s algorithms no longer rely on exact keyword matches. Instead, they assess topical authority — how well your content covers a subject in depth. Here’s how to build topical authority:

For example, instead of writing separate articles for: “How many keywords per page?” or “Best keyword research tools?” You could create one definitive guide on “SEO Keyword Best Practices in 2025” that covers all these aspects naturally.

Common SEO Keyword Mistakes to Avoid

Many website owners damage their SEO results by making these common keyword mistakes:

Testing and Refining Your SEO Strategy

SEO isn’t a one-size-fits-all process. What works for one page may not work for another. To improve your SEO results, monitor performance using analytics tools and adjust your strategy as needed. If a page isn’t ranking well, consider:

Recap on How Many SEO Keywords Should I Use

There’s no exact number of SEO keywords you should use per page. Instead, focus on creating high-quality content that answers user queries while naturally incorporating your primary keyword, secondary keywords, and related terms. You can build an effective SEO strategy that drives organic traffic in 2025 and beyond by avoiding keyword stuffing and prioritizing relevance.

Remember, the best SEO isn’t about hitting arbitrary keyword counts but delivering value to your audience while optimizing for search engines. Whether you’re targeting one keyword or multiple keywords, the key is to keep your content engaging, informative, and aligned with what users are searching for.

If you want to learn more about SEO optimization, we’ve got a wide range of resources. TripleAReview also has dedicated sections for tech guides and software reviews for digital marketing, email marketing, and AI writing to help you find the ideal tool to run your business.