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What Is SEO in Digital Marketing, and How Does It Work? 

By Kevin Talley

8 min read | Last Updated June 2, 2026

What Is SEO in Digital Marketing, and How Does It Work? 

Thousands of potential customers search online every day for businesses just like yours. But they won’t find you unless your website speaks the language of search engines. 

Search engine optimization (SEO) transforms how your business appears in search results, turning random clicks into qualified leads. 

So, what is SEO? And how does it work?  

Let’s take a look at how to use SEO in your small business to boost your bottom line. 

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What Is SEO? 

A man holding a magnifying glass up to represent searching online.

Today, when people need something, they turn to search engines like Google to find it. But for people to find your business’s website, search engines need to understand what you offer and how it can help potential customers.  

SEO makes that happen. 

SEO helps search engines understand the products or services you offer and how they are beneficial to potential customers. When someone searches online for the services you offer, good SEO digital marketing helps your website appear higher in the search results. 

Think of search engines as matchmakers. They read millions of websites to find the best answers for each search. This happens through a variety of signals, like: 

  • The keywords you use on your pages 
  • How well optimized your website is for speed 
  • How well your website’s link-building creates strong backlinks from other websites 

Good SEO isn’t about fancy tricks or technical wizardry. It’s about making your website useful and informative.  

When you help search engines understand your business, they can send more of the right customers your way. 

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Types of SEO 

SEO has many sides. Each one focuses on a different aspect of how search engines find your business online: 

Technical SEO 

Technical SEO makes sure search engines can read your site properly. This includes how you optimize your site load speed and how well your site works on mobile phones.  

Your search rankings suffer when technical problems get in the way. 

On-Page SEO 

On-page SEO is all about what’s on your website’s pages. On-page SEO covers everything from content to page titles to internal links.  

Each page on your site needs careful attention to rank well. Good on-page SEO starts with targeting the right keywords and writing content that helps your visitors. Your title tags, headings, and page content all work together to tell search engines what each page is about. 

Off-Page SEO 

Off-page SEO builds your site’s reputation by link building, also known as backlinking. When trusted sites link to yours, search engines see your site as more trustworthy. In the eyes of search engines, other respected businesses are vouching for your credibility. 

Local SEO 

Local SEO helps your business show up in local search results. This is crucial when people search for services “near me” or in specific areas.  

For good local SEO, you have to optimize your business listings, get customer reviews, and show up in map results. This helps people in your area find you.  

Content SEO 

Content SEO shapes how you create and organize information on your site. Write helpful SEO content that matches what people are searching for. This could be “About” pages or blog posts. 

Good SEO content helps your pages rank better in search engines and keeps customers on your site longer. Search engines reward websites with SEO that answer search queries clearly. 

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What Is an SEO Strategy? 

SEO written in large text with several icons below it. The icons represent different aspects of SEO.

An SEO strategy maps out how you’ll improve your rankings on search engines over time. It starts with keyword research to understand what your target customers search for online. Then, you create SEO content that matches these searches. 

A solid strategy includes all the types of SEO above. You should also: 

  • Do keyword research to generate the right keywords for your business 
  • Create SEO content that helps your target audience 
  • Build internal links between your pages 
  • Earn backlinks from other trusted sites 
  • Track your SEO rankings and make improvements 

The Main Goals of SEO 

Every business owner wants more customers. SEO helps you get it done. These four goals work together to grow your business online: 

1. Appear Highly in Search Results 

When people use search engines, you want your website to show up first. Good SEO helps your pages rank higher in search engines, improving your visibility. The better your SEO rankings, the more likely people will find—and, critically, click on—your business when they search. 

2. Bring in the Right Visitors 

SEO is about getting the right traffic, not just more traffic. When your keyword research helps you rank for the words that match what people are looking for, you get clicks from people who actually want your products or services. 

3. Connect With Your Audience 

SEO helps you speak your customers’ language. By using good keyword research and creating SEO content that matches common searches, you make it easier for people to find and choose your business. Your title tags, internal links, and on-page SEO content all work together to help search engines connect searchers with your website. 

4. Make Sense to Search Engines 

Search engines need to understand your website before they can show it to others. Great technical SEO makes your site clear and easy to read for both search engines and people. 

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SEO Best Practices 

A few key practices can help your website perform better. Here’s what matters most for small businesses: 

Content Quality 

Your SEO content should answer real questions and solve real problems. Use your target keywords in a natural way. Include them in your SEO content, title tags, and headings to help search engines understand your website. 

User Experience 

An SEO website should be optimized for speed and mobile users. This keeps visitors happy and helps your search rankings.  

Make your site easy to navigate with user-friendly menus and internal links between pages. When visitors stay longer on your SEO pages, search engines notice and often rank you higher. 

Keyword Strategy 

Start with thorough research to find SEO keywords your customers actually use. Use tools like Google Keyword Planner and Semrush to find relevant options.  

Focus on specific SEO phrases that match your business. You’ll face less competition than using broader ones. For example, instead of “graphic design,” aim for “modern graphic design in San Francisco.” 

Regular Monitoring 

Track how your pages rank on search engines. Watch which keywords bring visitors to your site.  

Use this information to keep your SEO content fresh and updated. It’s not worth having pages or keywords that don’t attract visitors. And when search engines make changes, adjust your SEO approach to stay competitive. 

3 Types of SEO Tools 

A person pointing at a laptop screen that displays icons representing SEO performance metrics.

The right tools make SEO work easier and more effective. Here are some of the most useful SEO tools that help small businesses boost their search engine rankings: 

1. SEO Ranking and Reporting Tools 

SEO tools track how your pages perform in search engines. They show which keywords bring visitors to your site and how your SEO rankings change over time. They also help you monitor your search engine marketing performance and spot opportunities for improvement. 

Examples: Google Analytics, Moz, Ahrefs 

2. SEO Audit Tools 

SEO audit tools check your website for common issues. They look at your title tags, internal links, and other important elements that affect your rankings. Good SEO audit tools help you find and fix problems before they hurt your performance. 

Examples: SE Ranking, Surfer SEO, Semrush 

3. SEO Keyword and Content Research Tools 

SEO keyword research tools show you what people are searching for. They help you find keywords that can bring qualified traffic to your site. 

Examples: Google Keyword Planner, Semrush, Ahrefs 

4 Tips and Sources To Learn SEO 

A laptop displaying a color set of icons with the word SEO in the middle of them.

Using the best SEO resources keeps you from bad advice that can hurt your performance. Here’s where to learn more: 

1. Use Trusted Sources 

Visit industry websites like Moz’s SEO Learning Center and Ahrefs’ SEO Academy. These time-tested platforms offer free, reliable information from experts. They also update their content with the latest search engine changes. 

2. Take Free Courses 

Start with free SEO courses from trusted platforms like Semrush and HubSpot. There are also plenty of paid courses from Coursera and Udemy if the free ones aren’t enough. 

3. Practice What You Learn 

Understanding SEO concepts isn’t enough. To cement your understanding, try different SEO techniques on your website.  

Track your rankings in search engines and learn from what works. Hands-on experience helps you learn faster and see actual results. 

4. Stay Updated 

Follow SEO blogs, join online communities, and keep up with Google’s official guidelines. Search engines change often, so staying current helps your site maintain good rankings. 

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