Difference between SEO and SEM


Today, professional marketing experts are highly sought after. This is why more and more people are looking to specialize in this field. Digital marketing offers many tools to give visibility to your website and your products. And, in this way, attract potential buyers.

Among these tools are SEO and SEM. If you are just starting out in the world of marketing, it is natural to confuse these concepts. Or that you don’t know what one of them means. But don’t worry, we’re here to help. We’ll show you what SEO and SEM mean. In addition, we’re going to make clear the differences between the two.

Google ranking

Keep reading so that you are clear about which of these two tools is the most convenient for you and your marketing campaign.


Or Search Engine Optimization. It’s about positioning your site in good places in the search engines. This tool consists of using methods and techniques to make your website appear among the first results of search engines. For this, you will have to make the search engines consider your website as a reliable and quality website.

Remember that, in order to achieve good results, your SEO strategy must be organic. If search engine algorithms catch you cheating, your website will probably be penalized. And this will have consequences that can affect the profitability of your website.

Primer puesto en Google

There are two types of SEO.

On-Page SEO

It is the set of actions and tools that you can apply within your own website to improve its positioning in search engines. This includes, for example, structuring the page properly. Also, making the URLs within your page user-friendly. And most importantly, generating and publishing quality content that satisfies the search intention of the users.

Off-Page SEO

It is everything you can do to spread the content of your website. You can do this by sharing your website on social networks. Or sharing your content in forums of the same subject. It’s called Off-Page SEO because these actions are performed outside your website.


By its acronym in English, Search Engine Marketing, SEM represents all the advertising you give to your website thanks to search engine tools. Nowadays you have many facilities to execute a SEM campaign. The best known search engine, Google, offers you Google Ads to promote your website.


As you know, nowadays social networks are very important platforms to advertise a product or service. This is why even social networks have their own SEM tools. Facebook, for example, offers you Facebook Ads.

Differences between SEO and SEM


You’re probably looking to get into the world of marketing to make a profit. That’s why we consider the difference in costs to be the most important. When you use a SEM strategy, you will be paying platforms to advertise your website. That is, tools like Google Ads or Facebook Ads are paid. What you have to pay will vary per campaign and the number of visits you receive on your site thanks to this advertising.

Google Ads

SEO, on the other hand, does not have a fixed cost. There are tools that can help you execute your SEO strategy that are paid. However, you can also implement a SEO strategy that is totally free. If you’re just starting out, you can generate without paying anything. And then invest according to the income you generate.


The time when you will see the results of your strategies will also be different. SEM strategies usually generate results that can be seen in the short term. While SEO strategies take more time. It can take months for you to start seeing the results of your SEO strategy.


A good SEO strategy will place your site among the first results of the search engines. However, you may work too hard and your strategy may not work. Or the search engine algorithm may change and your website may be affected. There are several factors that can cause your SEO to fail.

Instead, by paying for a SEM campaign, you’re making sure people will see your site’s advertising. Whether it’s on search engines or social networks.


Remember that SEO and SEM can work hand in hand. The important thing is that your strategies are aimed at giving your site visibility.

Tell us which strategy you think is more effective for your site.

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