In this article, we are going to see some basic SEO errors and how to fix them. There are many more, with more or less complex solutions, but having these clear we can give a “push” to our website to improve search results.

SEO mistakes you shouldn’t have on your website

1 – Your website is not responsive

Responsive websites are those that adapt to the screen size from which they are being viewed. You can imagine that a large part of the searches are carried out by mobile phones, so it is an obligation to have a responsive website.

It was one of the typical SEO mistakes a few years ago, but there are still websites that are adaptive to us.


If your site is developed to measure you are going to have to work on creating new style sheets, etc.… to make your website responsive.

If you work with CMS, you will surely have the issue resolved and if your theme is not responsive, buy a premium one as soon as you can.

2 – Poorly structured website

A lousy structure of your website entails adding more difficulty to search engines to index your site.

Also, you will not be able to follow a clear directory structure, which leads to a frustrating internal link structure.

By creating a clean and clear web structure, the user will be able to navigate the content of your website in a more intuitive way. It is one of the most common SEO mistakes, and although it is not a high impact, we will always get an improvement if you follow these recommendations.


Website structure with a maximum of 3 levels, well-structured by directories that will make search engines easier to index.

If your website is going to have many posts and apart from that you also have static pages like try to get the posts to hang from a folder such as / blog / the-post-of-my-blog.

Thus, the web structure is more correct, and everything is much more organized. We avoid that the structure of our website is very flat with all the entries hanging from the root. This does not apply to all cases, so check your structure to see what your possibilities are.

For those of us who use WordPress, I leave you with an article that talks about the structure of permanent links and the reflections of Yoast and Matt Cutts. A little old but perfectly valid:   You can read it here for  Correct web structure. 

3 – Unfriendly URLs

Whether you use CMS or custom development, sometimes the dynamically generated URLs by default are not usually friendly.

Example unfriendly URL:

Example URL friendly:

The Url structure called «SEO Friendly»  is a vital factor to considerably improve your organic ranking. In CMS like WordPress, it is easy to customize your URLs so that they are friendly, and you can enter potential keywords in the URL.

It is one of the most common SEO mistakes in poorly optimized custom developments.


It is essential that if you are starting to create your website with WordPress, you should try to optimize your URL for SEO. If you started with the default WordPress permalinks and now you change (Be careful with this), you will be able to correct the indexed URLs with redirects.

4 – Not optimizing the TITLE correctly.

The title tag has great importance in SEO since Google takes it into account to determine the content of the page. It is imperative that your content is related to what you have entered this label.

In many occasions, this tag is not used or optimized for the content that houses the page, so it does not get a good rank in the search engines.

This is one of the SEO mistakes with a significant negative impact if it is not done correctly.


Enter the potential keyword of the content of that page in the <TITLE> tag so that it is more SEO optimized.

The content must house that keyword and variants of it, but beware, do not go overboard, if you go over the keyword density Google will notice, and it will lower you in the search results … Write with common sense and for the user, not for Google. (Be careful with Keyword Stuffing, what basically is going over the line putting the Keywords)

5 – Your site loads very slowly:

Loading speed is a metric to keep in mind to improve your SEO.

Has it ever happened to you to consult an article on a website and that it takes time to load and go crazy to ask another? Well if it is tedious for the user, imagine for the search engines.

Google analyzes your loading speed and takes it into account for your search rank.

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Optimize images, hire a decent server, compress the HTML, CSS and Javascript of your page. Use some caching system like Wp Rocket, W3 Total Cache or WP Super Cache. Here I leave you a tutorial to quickly configure WP Super Cache for WordPress.

You can carry out an analysis of loading speed in both Google PageS peed ​​Insights and  Pingdom Tools.

6 – Do not apply 301 redirects 

Over time, it is very likely that search engines have indexed pages of your website that no longer exist, have been modified or that you do not want to have been indexed. This results in numerous 404 errors in the first two cases. Google values ​​a website without mistakes of this type, so it is advisable to analyze it and correct these errors.


In the event that we find an indexed page to which its URL has been modified, we will perform the corresponding 301 redirects, either through the .htaccess or if we work with WordPress we can also use the redirection plugin. In the event that the indexed page no longer exists, we will analyze why.

Then we can choose to remove it from the search engine through Google Webmaster Tools and create a disallow line in the robots.txt  If it is convenient, we can redirect 301 to another with similar content. In all cases, we would save error 404. Another option would be to create a custom page that will stop all the URLs that are broken by default.

7 – Do not establish a preferred domain (www or without www)

Be careful with this because if you do not determine your preferred domain, you will have two variants of your indexed website, therefore duplicate and penalized content. This is a very damaging SEO mistake. I recommend you read this Google support article where they explain how to determine your preferred domain.


Enter your Google WebMaster Tools account and determine your preferred domain.

8 – Duplicate content for having a blog by a single author

A widespread SEO mistake but one that is easy to solve. If you are using WordPress and only you write on the blog, you will have the same content on the author page as on your blog, so you will be duplicating content.


Add NOINDEX to your author page, (Google info on how to make NOINDEX) . or if you use the Yoast SEO Plugin  (Highly recommended) you only have to go to “Titles and Goals” and the Files tab, there you can deactivate the author files.

9 – Not having a sitemap configured and uploaded to search engines.

A sitemap is an XML file that contains a list of the pages of your website along with additional information, such as the indicator of how often the page changes its contents, when it was last updated and how important it is with respect to the rest of the pages. The pages of the same site. It is vital to give this XML to the search engines to make things easier for them and that they index faster and better.


Create your sitemap.xml file and send it to the search engines through the applications they have for it. In the case of WordPress, you can use the sitemap generator that Yoast brings, if you use it. If you don’t use Yoast, you can install the XML sitemaps plugin and perform the operation.

10 – Do not write content to write

It is a more challenging “error” to detect, but one that we can gradually improve. Listen to your audience in RRSS and check in which types of sectors they move.

Analyze where your traffic comes from and write content based on this. I tell you it is difficult, but it is a way to create a habit of analyzing and testing until you see the road.


SEO optimization involves continuous work, they are not actions that we optimize, and we forget about them … it requires a professional in constant analysis and improvement.

If you want to improve the SEO of your website, you must have professionals from the sector, SEO consultants who can carry out the appropriate optimizations, both on-page and off-page, to improve the organic ranking and organic traffic of your website.

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