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Optimising Keywords for SEO – How Many Do You Really Need?

Wilson Tiong

Understanding the role of keywords in Search Engine Optimisation (SEO) is crucial for any business looking to enhance its online presence. Keywords are not just about improving rankings; they’re about connecting with your target audience locally in Adelaide and even beyond.  

Keywords are the cornerstone of SEO, serving as the bridge between what people are searching for and the content you provide to meet those needs. The right balance and choice of keywords can propel your business to the top of search engine results, driving traffic and conversions. But how many keywords are enough, and how should you integrate them into your SEO strategy? 

Understanding Primary and Secondary Keywords 

Primary keywords are the main focus of your page, encapsulating the core topic or service you’re offering in your business. These are the terms most closely related to your business and are crucial for your SEO success.  

Secondary keywords, on the other hand, support and expand upon your primary keyword, covering related topics and queries. They provide additional context and opportunities to attract a wider audience from Adelaide and surrounding areas. 

The balance between primary and secondary keywords is key. You should have just 1 primary keyword as your main theme, while around 3-5 secondary keywords to capture a broader range of search queries, enhancing your visibility in the Search Engine. 

Effective Keyword Research

Keyword research is the foundation of any successful SEO strategy, especially in a competitive market like Adelaide. Tools such as Keysearch, SEMrush, and Google Keyword Planner are invaluable for identifying keywords that resonate with your audience. Start by understanding the common queries and concerns of your local customers and use these tools to uncover keywords that align with those needs. 

Utilising Keyword Variations

Your research should focus on finding keywords with a good balance of search volume and competition. High-volume keywords might be tempting, but they often come with intense competition. Sometimes, targeting less competitive, niche keywords can be more effective for Adelaide businesses. 

Keyword Density and SEO Content 

Keyword density refers to the number of times a keyword appears in your content, relative to the total word count. It’s not just about cramming in as many keywords as possible. Instead, it’s about using them strategically and naturally within your content. 

A good rule of thumb is to maintain a keyword density of 1-2%. This ensures that your content is optimised for search engines without compromising readability for your Adelaide audience. Remember, the primary goal is to provide value to your readers, not just to appease search engines. 

Utilising Keyword Variations 

Incorporating variations of your primary keyword can significantly enhance your SEO efforts. This approach allows you to cover a wider range of search queries related to your main topic. For instance, if your primary keyword is “Adelaide digital marketing,” your variations could include “digital marketing services in Adelaide” or “Adelaide online marketing solutions.” 

Using keyword variations helps you capture a broader audience while maintaining focus on your core topic. It also adds natural language diversity to your content, making it more engaging and readable. 

Aligning Keywords with Search Intent 

Understanding the search intent behind keywords is crucial. Aligning your keywords with what your audience is actually looking for can make or break your SEO strategy. 

For example, if you’re targeting the keyword “Adelaide café,” ensure your content addresses what someone searching for this term would expect to find, such as information about your café’s location, menu, and opening hours in Adelaide. 

The Role of Long-Tail Keywords 

Long-tail keywords are longer, more specific phrases that are often easier to rank for than shorter, more competitive keywords. They are particularly effective in targeting niche segments of your Adelaide audience. For instance, “artisan coffee shops in North Adelaide” is a long-tail keyword that might attract a specific type of customer more effectively than the broader “Adelaide coffee shops.” 

Long-Tail Keywords

Long-tail keywords are also closer to natural speech patterns, making them ideal for voice search optimization, which is increasingly relevant in today’s SEO landscape. 

Keyword Tracking and Analysis  

Tracking the performance of your keywords is essential to understand their effectiveness in driving traffic and conversions. Tools like Google Analytics provide insights into how your keywords are performing, allowing you to make data-driven decisions. 

Regularly review your keyword strategy to ensure it aligns with current trends and search behaviours. SEO is dynamic, and what works today may not be as effective tomorrow. Stay agile and be prepared to adjust your strategy as needed. 

Your content should not only be keyword-rich but also relevant and authoritative. This is particularly important in a knowledgeable and discerning market like Adelaide. Provide valuable, informative content that positions your business as a thought leader in your industry.

Understanding Primary and Secondary Keywords

Content relevance and authority go hand in hand with keyword optimization. While keywords help attract visitors to your site, high-quality content keeps them engaged and encourages conversions. 


There’s no one-size-fits-all answer to how many keywords you need in SEO. It’s about finding the right balance and mix that resonates with your audience.   

Focus on 1 primary keyword and around 3-5 secondary keywords, leverage long-tail keywords, and ensure your content is relevant and authoritative. Regularly track and analyse your keyword performance and be ready to adapt your strategy to stay ahead. Remember, the ultimate goal is to connect with your audience and provide value, not just to rank high in search engine results. 

If you want to rank for SEO in Adelaide area, your best option is to connect with ADEL SEO.