What is SEO?

Search engine optimization, or SEO, is not just a buzzword. It’s a necessary strategy for anyone who wants to be discovered online. But what exactly is SEO? And how can it help your business grow? Whether you’re a complete beginner or just looking to refresh your existing knowledge, you’re in the right place.
Senast uppdaterad
September 11, 2025

What is SEO and what are the benefits?

SEO is about improving the visibility of web pages in the search results (SERPs) of different search engines. By optimizing your website for search engines such as Google, Bing, or Yahoo, you can attract more relevant traffic and increase the number of people who click through to your site.

Optimization is important for businesses and websites because it helps them improve their digital presence. A stronger digital presence can help you attract more traffic, stay ahead of the competition, increase brand awareness, and generate more revenue.

Keywords and search results: The foundation of SEO

When you perform a search on Google, their goal is to deliver the best possible result based on your query. Google does this by interpreting the keywords you use. The results shown in a search engine can be divided into two categories: organic and paid search results.

Organic search results appear naturally due to their relevance to the keywords you’ve entered. These results are ranked based on relevance and content quality in relation to the search terms. To improve your organic search visibility, keyword research is a fundamental tool, well-chosen and strategically placed keywords can help your website rank high in organic search results.

Paid search results, on the other hand, are results that businesses pay for to gain visibility when users search for specific keywords. These ads usually appear at the top of the search results page and are marked as “Ad” or “Sponsored.” While organic results require time and patience to achieve high rankings, paid search results provide immediate visibility, though at a cost.

Both methods play an important role in a complete digital marketing strategy, and understanding the difference between them can help you optimize your online visibility.

The three pillars of SEO

Once you’ve identified relevant keywords for SEO, there are three core pillars you need to understand and work with to succeed in improving your website’s visibility in search engines. These three pillars are on-page SEO, off-page SEO, and technical SEO.

Together, they form the foundation of a holistic SEO strategy that combines and focuses on all aspects of search engine optimization. Here’s a brief introduction to the three pillars of SEO and how they work together to build a strong SEO strategy. Later in this guide, we’ll dive deeper into each area.

On-page SEO

Also called on-page optimization, this involves optimizing individual web pages on your site according to certain parameters to make them more relevant and visible to search engines. This includes adjusting and improving different elements on the page, such as:

SEO titles and meta descriptions

By writing clear, engaging SEO titles and using descriptions that include your chosen keywords, you help search engines understand what your page is about.

Headings

Using well-structured, keyword-rich headings (H1, H2, H3, etc.) makes it easier for search engines to understand the content and structure of your page.

Content

Creating high-quality, relevant, and user-friendly content that includes your target keywords helps you rank higher in search results and engage visitors who land on your site.

Off-page SEO

This involves building links (backlinks) to your website from other sites and promoting your brand and content across the internet.

Backlinks

Focus on acquiring high-quality links from authoritative and relevant sources to increase your domain authority and search engine rankings. The more high-quality links you have pointing to your site, the better it ranks. Search engines see backlinks from trusted sites as a signal that your own site is reliable.

Social signals

Engaging users on platforms such as Facebook, Twitter, and LinkedIn can boost your site’s visibility and drive more organic traffic.

Brand marketing

Promoting your brand, not just your products, services, or offers, helps you build a stronger online presence. That’s why this is also considered a key strategy.

Lokal SEO

This involves optimizing your site and online presence for local search results. Examples include creating a Google My Business page, optimizing your site for local keywords, and ensuring that your NAP (name, address, phone number) information is consistent across all online directories.

Technical SEO

Technical SEO focuses on optimizing the technical aspects of your website to improve its visibility and accessibility for search engines. You can strengthen your technical SEO by optimizing the following:

Loading times

Improve site speed by optimizing images, minifying CSS and JavaScript, and using fast web hosting. A faster site boosts user experience and ranking.

XML-sitemap

Optimizing your XML sitemap makes it easier for search engines to find and index your web pages. A well-structured, updated sitemap gives search engines a clear picture of your site’s structure and content.

robots.txt

Using a robots.txt file lets you control how search engine crawlers interact with your site and which pages they index. This helps prevent irrelevant pages from being indexed and ensures focus on your most important content.

Security

Ensuring your site is secure and protected from hackers or malware builds trust with both users and search engines. Using HTTPS (SSL certificates) helps increase security and rankings.

URL structure

Clean, descriptive URLs make it easier for users and search engines to understand what a page is about. Including relevant keywords in your URL can further improve SEO performance.

Mobile optimization

This means optimizing your site for mobile devices, for example by using responsive design, implementing AMP (Accelerated Mobile Pages), and optimizing speed and usability on mobile.

Improving SEO by measuring results

To effectively analyze and measure your SEO performance, it’s crucial to use tools like Google Analytics and Google Search Console. These free platforms are designed to track, analyze, and present insights into your website’s SEO performance in an understandable way.

Your search rankings

A key part of this process is monitoring where your keywords rank in search results. Each keyword or phrase has a ranking based on its relevance to your site and the user’s search. Higher rankings for business-related keywords can dramatically improve visibility and increase traffic.

Engagement and conversions

It’s not only about traffic. Analyzing engagement metrics like bounce rate, average time on page, and conversion rate provides deeper insights into how visitors interact with your site. These insights help you improve user experience and encourage behaviors that support your business goals.

By using the right tools and interpreting data effectively, you can refine your SEO strategy and tactics, leading to better results and increased visibility online.

Summary

SEO, or search engine optimization, is about improving the visibility of web pages in search results by optimizing websites for engines such as Google, Bing, or Yahoo. With the right SEO strategy, you can attract more relevant traffic, increase brand awareness, and generate more revenue.

The key to effective SEO is understanding and implementing relevant keywords while working with the three pillars of SEO: on-page SEO, off-page SEO, and technical SEO. On-page optimization makes individual pages more relevant and visible, off-page SEO builds links from other sites, and technical SEO improves your site’s underlying performance.

Finally, remember that measuring and analyzing SEO performance with tools like Google Analytics and Google Search Console allows you to refine your strategy and tactics to achieve better results.

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