Relevant but not-relevant keywords impact to SEO

[Siir]

Hello, I would like to know if the selection of individual keywords(that are not primary, secondary or tertiary) are important for SEO regardless of the relevancy to the page topic. I am wondering how much of a contribution a non-P1/P2/P3 can make in terms of SEO?

For example it is a product page and I have built my content with P1,P2&P3 based only on the product and its properties itself. Do you think that a content gap for the page could be the production process of that product? So even if it is a product and its properties page, I can add 2 sentences about the production, so that I can drive more traffic by including these 2 informative sentences.?

EXAMPLE:
So lets' say my topic is "hair types" (P1) and my subtopics are "Straight," "wavy," and "curly"(P2s) which I used as subtitles. But throughout the page, I am planning to add some relevant but not-directly-relevant keywords here and there since they have high metrics and volumes. For example a potential sentence I can add: "innovative hair products these days can offer amazing results for the desired hair types". It is not specifically about "hair types" but I am using the keyword "innovative hair products" (good metrics keyword) which may help for the traffic... Another potential not-so-direct sentence can be: "For all hair types, the hair damages are common: heat damage, chemical damage and mechanical damage". Would adding this extra sentence where I am not specifically talking about "hair types" (my topic) but "hair damages" and damage examples (off-topic high metric keywords) help me to drive traffic to my website? And how much of an impact would it be?

[dazonntechnolog]

Yes, choosing irrelevant keywords can impact your SEO rankings and user engagement. Keywords are used by Google and other search engines to determine what your website is about and where it should appear in search results. Many non-search engine marketing professionals are frequently advised that keywords reign supreme in SEO. However, in recent years, the emphasis has shifted towards prioritizing a website that provides a positive user experience over simply focusing on relevant keywords.

[Siir]

@George_Inoriseo Thank you so much for the detailed reply. It makes sense! Appreciate the help!

[George_Inoriseo]

@Siir Selecting and integrating individual keywords that are not directly categorized as primary, secondary, or tertiary can still be important for SEO, particularly if they maintain relevance to the topic of the page. These keywords can contribute significantly to driving additional traffic, especially when they tap into related interests or queries that your target audience might have.

In your example, the inclusion of terms like “innovative hair products” or “hair damages” on a page primarily about hair types can indeed be beneficial for several reasons:

Topic Depth and Breadth: By including related but not directly relevant keywords, you are broadening the scope of your content. This can make your page more informative and potentially more appealing to a wider audience. Search engines favor content that provides comprehensive coverage of a topic because it signals that the content can effectively answer user queries.

User Intent Matching: Different users may have varying intents when searching related terms. Some might be looking for types of hair but could also be interested in how to protect their hair from damage or what products to use. Addressing these related queries can capture traffic from these varied intents.

Improving Keyword Portfolio: Utilizing a diverse set of relevant keywords helps to build a more robust keyword portfolio on your site. This can enhance your site's ability to rank for a broader array of search queries.

Semantic Search Benefits: Search engines like Google use semantic search capabilities to understand the context around words in a query. Including related terms helps align your content with possible semantic interpretations and related searches, enhancing your visibility.