What Are Secondary Keywords And 5 Ways to Leverage Them

SEO Writing
Ellie Rise
October 7, 2024
9 min

When optimizing your content for search engines, using the right mix of keywords is crucial. In the world of SEO, focusing solely on your primary keyword isn’t enough. Secondary keywords play a critical role in expanding your content's reach, driving targeted traffic, and increasing ranking potential. They are often overlooked but are essential for creating a well-rounded SEO strategy.

Understanding secondary keywords is key to developing an effective SEO plan that goes beyond just primary keyword targeting. In this article, we’ll explain what secondary keywords are and share five powerful ways to leverage them effectively, including tips on how to find them using advanced SEO tools.

What Are Secondary Keywords?

Secondary keywords are additional search terms closely related to your primary keyword. While your primary keyword defines the main focus of your content, secondary keywords broaden the scope by covering related topics, variations of search queries, and synonyms. This makes your content more comprehensive, relevant, and visible to users with different search intents.

For example, if your primary keyword is “plant-based recipes,” secondary keywords could include:

  • "easy plant-based meals"
  • "vegan dinner recipes"
  • "healthy plant-based snacks"

By integrating these related terms into your content, you give search engines a clearer understanding of your topic. This ensures your page ranks for a broader range of queries, increasing your visibility on search engine results pages (SERPs). When combined effectively, primary and secondary keywords can boost your organic traffic and enhance user engagement.

Why Are Secondary Keywords So Important for SEO?

Secondary keywords play a crucial role in boosting your primary keyword’s performance, helping your content rank higher for a broader range of relevant search queries. Instead of creating separate pages for each keyword variation, a single piece of content can be optimized to address multiple related terms, enhancing its authority and relevance in search results.

The significance of secondary keywords has grown dramatically since Google’s algorithm updates like Hummingbird, which shifted focus to understanding search intent. This means secondary keywords are essential for clarifying the context of your primary keyword, helping search engines understand the intent behind a user's query.

For instance, if your primary keyword is “jaguar,” it could refer to the animal or the luxury car brand. Secondary keywords like “wildlife” or “big cat” clarify that you're discussing the animal, while terms like “car performance” or “luxury SUV” would indicate you’re referring to the automobile.

By using secondary keywords strategically, you give search engines a clearer picture of your content, helping you rank for more varied and specific queries.

Using secondary keywords, often referred to as Latent Semantic Indexing (LSI) keywords, can also improve your content's relevance for related search queries, though they aren’t synonyms. These conceptually related terms provide deeper context, which is essential for ranking on broader topics. However, relying solely on LSI keywords may not be as effective as leveraging secondary keywords that directly relate to your topic, which is where advanced SEO tools come into play (for example, SEO Rocket's tools, such as Related Keywords and Cluster Research. But first, let’s learn the basics of locating secondary keywords.

How to Find Secondary Keywords?

Finding the right secondary keywords for your content is straightforward and can significantly enhance your SEO efforts. Here are some effective methods to uncover valuable keyword opportunities.

Use Google Search Features

Google Autocomplete, People Also Ask, and Related Searches provide great insights into common search terms related to your primary keyword.

  1. Google Autocomplete

    Start by typing your primary keyword, like "healthy meal prep," into Google. As you type, pay attention to the suggestions that appear in the autocomplete dropdown. These suggestions are often popular search terms that can serve as effective secondary keywords.

  1. People Also Ask
    This section, appearing in the middle of the SERP, showcases frequently asked questions around your keyword. These questions can provide inspiration for subtopics and secondary keywords. For instance, if you see questions like "How to meal prep healthy for a week" these can serve as both secondary keywords and content ideas.

  1. Related Searches (People Also Search For)
    At the bottom of the search results page, you’ll find a "People Also Search For" section. This area presents additional keyword suggestions that are contextually relevant to your primary keyword. These related terms can often help you brainstorm fresh ideas and variations that enhance your content’s depth. And this is a great place to identify long-tail secondary keywords.

To gauge whether a search term can function as a secondary keyword, simply Google it. If you notice a significant overlap in search results with your primary keyword, that term can likely be categorized as a secondary keyword.

Use a Keyword Tools

Keyword research tools are essential for discovering valuable secondary keywords, and many options are available—some even for free. These tools allow you to input your primary keyword and receive a wealth of suggestions based on real Google search data.

When selecting a keyword tool, look for features that provide actionable insights into keyword performance, such as search volume, difficulty level, and cost per click. For instance, with SEO Rocket, you can enter your primary keyword and quickly view essential metrics, helping you identify the best keywords to target for your content.

Unlike other tools, SEO Rocket streamlines your keyword research by suggesting relevant secondary keywords tailored to your article. This means you won't have to compile a separate list of related terms, saving you valuable time and effort.

If you’re new to keyword research, consider checking out a beginner SEO tool  option like Ubersuggest. Simply enter your primary keyword, select your target audience and language and click search. The tool will generate a comprehensive list of related keywords along with valuable insights.

While exploring suggestions, it’s important to evaluate their relevance. For example, if you input "digital marketing," and receive a suggestion like "how to make a marketing video," check the search data. If it shows low interest, it may not be worth including in your content.

Prioritize secondary keywords that strike a balance between reasonable search volume and competition level. While high-volume keywords can be tempting, they often come with significant competition. Focus instead on keywords that might have lower search numbers but still present solid traffic potential.

As your keyword research needs grow, consider tools like Google Keyword Planner to expand your analysis capabilities further. With SEO Rocket, you can enhance your content strategy and ensure your articles resonate with your audience, driving traffic and engagement.

Analyze Google Search Console Data

For those who have already published content, leveraging Google Search Console (GSC) can be a game-changer in assessing performance and uncovering new keyword opportunities.

GSC reveals the actual search terms that drive traffic to your site, allowing you to identify underutilized secondary keywords and improve existing content.
Follow these straightforward steps to get started:

  1. Access GSC and navigate to the Performance tab.
  2. Select "Search results."
  3. Set your desired date range and device types.
  4. Check the boxes next to Total clicks, Total impressions, Average CTR, and Average position.
  5. Scroll down to the Queries section.

Here, you'll find the search terms your pages are ranking for. By sorting these terms based on clicks, impressions, and other metrics, you can pinpoint which keywords are driving the most traffic.

For instance, if your primary keyword is "sustainable gardening," you might discover secondary keywords like "organic pest control" or "composting techniques" that your content ranks for but hasn’t fully optimized. By enhancing your articles with these keywords, you can boost their relevance and improve their rankings in search results.



Explore Industry Forums and Social Media Groups

Tapping into niche industry forums or social media groups can help you discover relevant secondary keywords that may not appear in traditional tools. Professionals often discuss trending topics or pose questions that reveal new keyword opportunities.

Use your experience

Sometimes, using your own experience and knowledge in a field can help you naturally identify secondary keywords. This is especially useful in specialized industries where keyword research tools may not cover specific terms.

Consider engaging with industry-specific forums or social media groups where professionals share insights and queries. For instance, if you're involved in the 3D printing sector, you might explore platforms like the 3DPrintingForum. Here, you can identify trending discussions and common questions, revealing potential secondary keywords or even entire content ideas that resonate with your audience.

However, while this approach can provide valuable insights, it's important to remember that relying solely on intuition can be hit or miss. You may gain a general sense of which keywords are popular, but for a more accurate and effective strategy, it's always advisable to combine your insights with data-driven research using robust tools.

How to Leverage Secondary Keywords in Your Content

Finding the right secondary keywords is only half the battle. The real success lies in how you strategically integrate them into your content. Here are five best practices for leveraging related keywords in your content:

  1. Naturally Incorporate Keywords
    While it's essential for search engines to recognize your content's relevance, your readers should never feel like keywords are forced into the text. Keywords placed awkwardly can harm the user experience, so ensure they flow naturally within the content.

    A great way to do this is by focusing on writing high-quality content first. By covering the topic thoroughly, you’ll often find that many secondary keywords naturally make their way into the article. Once the writing is complete, you can optimize and fine-tune the keyword placement.

    Additionally, secondary keywords work well in subheadings. They can boost relevance while providing clarity for readers and search engines alike.

    Finally, leverage secondary keywords in image alt texts, meta descriptions, and even in the body, but only when they enhance the clarity and context of the content.
    Here’s example of a well-placed secondary keyword in a meta description, using the primary keyword "best vegan protein powder":


  1. In this case, the primary keyword "best vegan protein powder" is paired with the secondary keyword "plant-based protein". Both are semantically related and provide additional value to users searching for variations or related terms. This enhances the content's reach while maintaining natural readability.

  2. Prioritize Primary Keywords Secondary keywords serve to complement the primary keyword, but they should never overshadow it. Ensure that your primary keyword remains prominent in the key areas:some text
    • Page title and Meta description
    • URL

    • Main heading (H1)

Secondary keywords should enhance the content without diluting the focus on the primary keyword, ensuring that search engines understand the main topic of your page.

  1. Avoid Keyword Stuffing

    While it's tempting to include as many keywords as possible, keyword stuffing is a surefire way to get penalized by search engines. Overloading your page with keywords (whether primary or secondary) can lead to poor readability and lower rankings.


  1. Google’s algorithm is smart enough to identify when content is trying to manipulate rankings. So, always keep keyword density in check and make sure your secondary keywords are strategically placed rather than crammed in.

  2. Leverage Keywords in Supporting Areas Beyond the content body, secondary keywords can shine in supporting elements like:some text
    • Meta descriptions
    • Image alt text
    • Page subheadings (H2, H3, etc.) as in the example below:

    • Anchor text in internal links

These areas offer additional ways to communicate relevance to both users and search engines, improving your chances of ranking for multiple related queries.

  1. Optimize for Search Intent

    Ensure your content aligns with user intent by answering their questions or solving their problems. This improves your relevance and increases the likelihood of ranking higher for both primary and secondary keywords.

    Don’t feel obligated to include every possible secondary keyword—focus on what’s most relevant to your audience's needs.

    Remember, Google rewards content that genuinely serves the user. By providing clear, well-organized information that addresses your audience’s queries, your secondary keywords will work harmoniously to boost visibility without detracting from the primary topic.

5 Examples of Using Secondary Keywords in SEO

Now that you understand what secondary keywords are and why they’re important, let's dive into some examples of how they can be leveraged across different industries. Below, you’ll find sample content topics with primary and secondary keywords, including synonyms and long-tail variations that enhance SEO performance.

1. Secondary Keywords for Fitness

Topic: Best data storage solutions for small businesses

Primary keyword: gain muscle mass

Secondary keywords:

  • fast muscle growth
  • how to build lean muscle
  • increase muscle strength
  • muscle-building workout routines
  • protein intake for muscle gain

2. Secondary Keywords for Personal Finance

Topic: Essential money management strategies

Primary keyword: money management strategies

Secondary keywords:

  • personal budgeting tips
  • how to save money effectively
  • financial planning for beginners
  • best ways to manage debt
  • creating a monthly budget

3. Secondary Keywords for E-Commerce (Skincare)

Product page/topic: Sunscreen lotion with moisturizer

Primary keyword: sunscreen lotion with moisturizer

Secondary keywords:

  • SPF moisturizer
  • daily sun protection cream
  • hydrating sunscreen for sensitive skin
  • broad-spectrum sunscreen lotion
  • non-greasy sunblock

4. Secondary Keywords for Technology

Topic: Best data storage solutions for small businesses

Primary keyword: data storage solutions

Secondary keywords:

  • cloud storage for businesses
  • secure data backup methods
  • how to protect digital assets
  • data management for startups
  • affordable cloud storage services

5. Secondary Keywords for Travel

Topic: Affordable family vacation ideas

Primary keyword: family vacation ideas

Secondary keywords:

  • budget-friendly vacation destinations
  • best family trips on a budget
  • cheap vacation spots for families
  • all-inclusive family resorts
  • affordable family travel tips

Key Takeaways

By leveraging secondary keywords alongside your primary keyword, you can enhance the SEO visibility of your content, attracting more traffic and improving search engine rankings. This holistic approach helps target a broader audience while keeping content relevant and valuable. Whether you're creating product pages or blog posts, leveraging the right secondary keywords will make all the difference.

With tools like SEO Rocket and a well-planned strategy, secondary keywords can transform your content and elevate your SEO efforts. Manually finding secondary keywords can be time-consuming, but SEO Rocket's Related Keywords tool makes it easy. Just enter your main keyword, and you’ll instantly receive a list of related secondary keywords. This tool helps you build a rich list of potential keywords without spending hours on manual research.

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