Did you know that SEO errors can have disastrous consequences? Many websites, even those managed by experts, often fall into seemingly harmless SEO blunders that can drastically reduce their visibility and effectiveness.
These errors, which often go unnoticed, are poison for any SEO strategy and can cause a significant drop in ranking on a search engine like Google, negatively affecting organic traffic and, consequently, the authority and reputation of the site.
Keep reading the article and discover which SEO mistakes you should never make again if you want to have a website, or an eCommerce, with solid foundations and ready to take off!
1. Unoptimized Title and Meta Description: The First Serious SEO Mistake
The title and meta description are among the most important elements of a web page. A title is the first thing users and search engines see in search results (SERP), while the meta description provides a brief summary of the page’s content.
A common mistake is neglecting to optimize these elements, making them unattractive or irrelevant to the page’s content. This can lead to a low CTR (Click-Through Rate), negatively affecting the SEO positioning.
How are unoptimized titles and meta descriptions harmful?
- Unconvincing titles and descriptions can reduce the number of clicks, signaling to search engines that the page might not be relevant or useful.
- Irrelevant titles and descriptions can confuse both users and search engines about the true nature of the page’s content.
- Without the strategic inclusion of relevant keywords, search engines struggle to understand and correctly position the page.
By effectively optimizing titles and meta descriptions, you will not only improve your page’s SEO ranking but also increase the chances of attracting and maintaining your visitors’ attention.
2. Duplicate and Poor Content: If You Don’t Focus on Value, Your Website Will Sink
Duplicate content refers to substantially identical or very similar blocks of content found in multiple places on the Internet. This can happen both within the same site (internal duplicate content) and between different sites (external duplicate content).
Poor content (thin content) is content that offers little or no value to users. It can be pages with very little text, or with text that is not useful, informative, or unique.
Examples of how duplicate or thin content can harm SEO
- Google and other search engines penalize sites that present duplicate content. This can lead to a drop in ranking or even removal of pages from search indexes.
- When there are multiple copies of the same content, incoming links (backlinks) are distributed among these different copies, diluting the authority that would otherwise be concentrated on a single page.
- Search engines have difficulty determining which version of duplicate content is more relevant, leading to problems in indexing and positioning pages.
- Visitors might encounter the same content on different pages of your site, experiencing a sense of confusion that reduces trust and engagement.
- In the case of internal duplicate content, your pages will end up competing with each other in search engines, rather than supporting each other.
3. No Mobile-First? Danger Is at the Door
With the exponential increase in the use of mobile devices for internet browsing, search engines, particularly Google, have adopted the mobile-first indexing
approach.
This means that the mobile version of a website is considered the primary version for indexing and ranking in search results.
Mobile optimization is now a fundamental element for a website’s online visibility.
Features of Mobile-First Indexing:
- Search engines analyze and index the mobile version of your site first.
- An optimized mobile user experience is essential to maintain high levels of engagement and reduce bounce rates.
- Loading times on mobile devices are an important factor for SEO ranking.
Consequences of a site not optimized for mobile devices:
- If your site is not optimized for mobile devices, it is likely to experience a decrease in ranking in Google search results and other search engines.
- A non-responsive or slow site on mobile devices offers a negative user experience, which leads to an increase in bounce rate and a decrease in time spent on the page.
- With a growing percentage of users accessing the internet via mobile devices, a site not optimized for these devices can lose a significant portion of its traffic.
- A site not optimized for mobile negatively affects conversions, as users may find it difficult to navigate, read content, or complete actions such as purchases or sign-ups.
- If your site is not easily navigable on mobile, other sites may be less likely to link to it, and this would negatively affect your backlink profile.
4. Insufficient site loading speed: watch out for ranking
A website’s loading speed is a critical factor for both SEO ranking and user experience.
Google has clearly indicated that site speed is a ranking factor, especially since it launched the Speed Update algorithm update:
- Slow sites tend to have a higher bounce rate, as users are less likely to wait for the page to load.
- Loading speed affects conversions, and even a delay of a few seconds can significantly reduce the conversion rate.
- A fast site improves the overall perception of the brand, increasing user trust and satisfaction.
Check your website’s speed right away! Use tools like Google PageSpeed Insights, WebPageTest, or LiteSpeedCache.
5. Ineffective or harmful Link Building: stop or you’ll destroy your off-page reputation
A website’s backlink profile is the set of all external links pointing to the site. These backlinks are considered by Google and other search engines as a signal of trust and authority.
A high-quality backlink profile can significantly improve a site’s ranking in search engine results pages (SERPs).
Low-quality backlinks, on the other hand, come from spam sites, irrelevant sites, or manipulative practices such as link exchanges or buying links. These backlinks can damage your site’s reputation and ranking.
Low-value backlinks are detrimental. Read here why
- Google can penalize your site if it detects an excessive amount of low-quality backlinks. This can lead to a drastic drop in ranking or even removal of the site from the search index.
- Backlinks from spam or unreliable sites can diminish your site’s authority, compromising its credibility in the eyes of search engines.
- Backlinks from irrelevant sites can bring low-quality traffic that doesn’t positively contribute to the site’s objectives.
- Backlinks from questionable sources can damage your site’s reputation, influencing users’ perception and trust in your content.
6. Not paying attention to internal links is unacceptable for a user-friendly site
Hyperlinks play a fundamental role in defining the structure and effectiveness of a website, going well beyond the simple function of allowing users to navigate between pages.
Internal links transfer authority (link juice) from one page to another within the site and shape the user’s path within the site itself.
This applies both to external links, which are often outside our direct control, and to internal links, which we can manage strategically.
To make your links user-friendly and optimized for Google, it’s important to adopt some practices:
- The anchor text of your links should be descriptive and clear. Users should immediately understand where the link they click on will take them.
- It’s useful to create connections from pages with high authority to pages with less authority. This helps the latter gain more visibility and better positioning in search engines.
- Including a well-organized navigation bar and footer with links to the most important pages (such as the homepage, FAQ, About Us, Contact Us) ensures that users can easily find what they’re looking for at any time.
- Creating topic clusters, i.e., multiple pages on related topics interconnected with each other, is a good practice to increase the site’s authority.
- Making the user’s path as short and direct as possible improves the “user experience. Even if there’s no concrete evidence that the ‘three-click’ rule directly affects SEO, it’s undeniable that a site that’s easy to navigate is more appreciated by users.”
7. Neglecting User Experience (UX): If You’re Not Thinking About the User, You’re Doing It All Wrong
User Experience (UX) is the overall experience a user has when interacting with a website.
It includes elements such as ease of navigation, visual design (UX design), loading speed, accessibility, and content quality. Good UX serves to keep users engaged and satisfied during their visit to the site.
UX and SEO are closely interconnected. Google and other search engines increasingly consider UX factors as key elements in ranking websites.
Good UX not only helps keep users on your site longer, reducing bounce rate, but also encourages sharing and return visits, important signals for search engines.
What happens if you don’t take care of UX?
- Poor UX can lead to a high bounce rate, indicating to search engines that the site might not be relevant or satisfactory for users’ needs.
- A positive user experience increases the time spent on the site, a factor that Google considers when evaluating the quality and relevance of a site.
- Positive user interactions, such as clicks on internal links and conversions, are positive signals for search engines.
- With mobile-first indexing, a UX optimized for mobile devices is fundamental for good SEO positioning.
8. Lack of SEO Strategy and Keyword Research: You’re Groping in the Dark
Keyword research is a fundamental aspect of SEO strategy. It consists of identifying the words and phrases that your target audience uses when searching for products, services, or information online.
Understanding and using these keywords within your website helps improve search engine positioning, bringing more qualified and relevant traffic to your site.
If you don’t conduct adequate keyword research and don’t target your content, there are many negative consequences that can affect your website’s performance, both from an SEO perspective and in terms of user engagement and conversions.
What happens if you don’t do good keyword research?
- Without specific keywords, search engines will have difficulty understanding the focus of your site and, consequently, won’t know for which searches to show your pages.
- Even if your site attracts visitors, without precise targeting, it’s likely that they won’t be interested in your content or product. This results in a high bounce rate and low conversion rates.
- Without understanding which keywords are used by your target audience, you risk not answering their specific questions or not meeting their needs, thus losing potential customers or readers.
- Your content might be less competitive compared to that of your competitors who have conducted keyword research and produced optimized content. This can lead to a loss of ranking and visibility in favor of competing sites.
- Keyword research can reveal less saturated market niches and unique opportunities. Without this research, you might miss the opportunity to position yourself in these less competitive spaces.
- The lack of keyword research makes it difficult to align your marketing and content strategies with SEO goals.
- Without target keywords, it becomes difficult to measure the effectiveness of your content and make improvements based on concrete data.
9. Ignoring image and video optimization worsens the overall performance of your website
Image optimization is an often overlooked aspect of SEO, yet it is fundamental in improving the overall performance of a website.
Images can influence both the loading speed of the site and its visibility and ranking on search engines.
If you ignore “image optimization on your website, various problems can occur that negatively affect both the” user experience and the SEO performance of the site.
Here are some of the main consequences:
- Unoptimized images, especially large ones, significantly slow down page loading times. This impact on speed leads to a frustrating user experience and increases the bounce rate, as users tend to leave sites that take too long to load.
- Loading speed is an important factor for search engine ranking. A slow site can therefore suffer a penalty in ranking, making it more difficult for users to find your site through organic search.
- With the increase in internet use on mobile devices, having unoptimized images can significantly deteriorate the user experience on these devices, especially on slower connections.
- Large images consume more transmission data, which can affect hosting costs and site efficiency, especially for users with data limits or slow connections.
- If images are not optimized with appropriate alt tags and descriptions, they may not appear in image search results, thus losing a potential source of traffic to the site.
- Optimized images are more easily shareable and viewable on social media. Large or incorrectly formatted images may appear cropped or distorted when shared, reducing the appeal of your content on social networks.
10. 404 errors and broken links
404 errors and broken links are significant issues in SEO, as they directly impact the user experience and the perception of your website’s quality.
When a user encounters a 404 error, it means they have tried to access a page that no longer exists, often due to a broken link, a URL change, or a page removal.
This not only creates frustration but can also give the impression of a neglected or obsolete site.
The damage caused by too many 404 errors and broken links
- From an SEO perspective, an excess of 404 errors or broken links can be interpreted by search engines as a sign of poor site maintenance, negatively affecting its ranking. Although an occasional 404 error is not disastrous, a high number can indicate to search engines that the site does not offer a good user experience.
- Furthermore, broken links, both internal and external, interrupt the navigation flow on the site and can disrupt the
link juice
, i.e., the transmission of value and authority between pages, a fundamental element for a good SEO strategy. - Regularly monitor your site for 404 errors and broken links using specific tools such as Google Search Console or third-party software. Quickly resolving these issues not only improves “the user experience on your site, but also helps maintain a good position in search results, essential for attracting qualified traffic and maintaining the” authority of your site over time.
11. Not Frequently Updating Your Site and Its Content Gets You Nowhere
Not frequently updating your site and its content is a serious SEO mistake that can have significant repercussions on a website’s performance in search engines.
Let’s see why it’s so important and what the consequences of a lack of regular maintenance are.
Consequences of a Lack of Regular Updates:
- A site that isn’t frequently updated can suffer a drop in ranking, as search engines might consider it less relevant compared to sites that regularly publish fresh content.
- If visitors don’t find new or updated content, they might lose interest and look elsewhere for information, leading to a decrease in traffic.
- Without new content that stimulates interaction, user engagement on the site can decline, resulting in negative effects on engagement metrics.
- A site that doesn’t update regularly loses its perception of authority and reliability among users and in comparison to competitors.
To avoid these negative consequences, it’s essential to adopt a dynamic content management strategy that includes regular publication of new content and updating existing ones, keeping the site lively, current, and appealing to both users and search engines.
12. Sitemap: If You Haven’t Communicated It to Google, Do It Now
A sitemap is a file that lists all the important pages of your website, providing search engines with a guide on how the site is structured.
It can be in XML or HTML format, and it helps search engine crawlers, like Googlebot, discover and index your site’s pages more efficiently.
Not communicating the sitemap to Google is indeed an SEO mistake that can negatively affect how search engines index and understand your site.
What Happens If Google Doesn’t Have Your Website’s Sitemap
- Without a sitemap, search engines might not be able to discover all the pages of your site, especially if the navigation structure is complex or if there are isolated pages.
- New pages or updated content might take longer to be discovered and indexed by Google, delaying their visibility in search results.
- Some pages might not be indexed at all, which means they’ll have no chance of appearing in search results.
13. A Site Not Accessible to Everyone Is a Failed Site
It’s crucial to remember that not all users navigate the web under the same conditions. Health issues, disabilities, or simply advanced age can make internet navigation challenging.
A website that doesn’t consider “accessibility for all users risks becoming hostile and uninviting, compromising the” overall experience and also violating moral principles of inclusion.
The World Wide Web Consortium (W3C) provides detailed guidelines to make websites accessible to a wide variety of users.

These resources are essential to ensure that your website is navigable and usable by everyone, without discrimination or barriers.
If your site has gaps in terms of accessibility, or if you receive feedback from your users about navigation difficulties, you must take action immediately.
14. Using the HREFLANG Tag Incorrectly
One of the main challenges is overcoming language barriers that can compromise the “user’s experience”.
This is where the hreflang tag comes into play, which is used to indicate to search engines which language version of your site to show users, based on their geographic location and language.
Improper use or absence of this tag can lead to confusion and frustration for users, with the risk of increasing bounce rate and decreasing conversions.

In conclusion, “careful management of the hreflang tag is essential to ensure smooth and intuitive navigation for all users, regardless of their language and geographical location, thus maximizing the reach and” effectiveness of your website in an international context.
15. Website cache storage problems
Cache storage is a technique used by web browsers to improve the loading speed of web pages. When a user visits a site, the browser temporarily stores some of its elements, such as images, CSS files (stylesheets), and JavaScript files, on the local hard drive or in memory.
This way, when the user returns to the same page, or visits other pages on the same site, the browser can retrieve these elements from the cache, rather than downloading them again from the site’s web servers.
However, problems can occur when the cache doesn’t work properly, or when cached files become outdated.
What are the most serious problems if your website’s cache doesn’t work as it should
- If the browser continues to retrieve files from the cache, it might show users outdated content. This is particularly problematic for websites that change frequently or publish new content.
- Some cached files may not be compatible with the latest versions of the website, or with certain browsers, causing display errors or functionality issues.
- If cached files include sensitive data or confidential information, there could be a risk of unauthorized exposure if someone accesses the user’s device.
- Users might need to manually clear their browser cache to resolve display or functionality issues, which can be inconvenient.
To address cache storage issues, it’s important to:
- properly configure your website to manage caching effectively.
- use HTTP headers to control browser caching, specify expiration dates for cached files, and manage cookies to customize caching based on the site’s needs.
- regularly monitor website performance and address any cache-related issues promptly.
Example of how you can configure cache storage using the .htaccess file in Apache
This is an example of how you can enable cache storage for images, CSS, and JavaScript files for a period of one month:

16. Not checking your website’s health? Scan and read the data now
Not regularly checking your website’s health can lead to a series of undetected and unresolved issues, negatively affecting the site’s performance in search engines:
- undetected and unresolved technical errors can lead to a drop in search result rankings.
- A website with navigation problems or slow loading can discourage users, causing a decrease in traffic and engagement.
- Search engines penalize sites with security issues or poor user experience.
- A site with frequent errors or security problems damages your brand’s online reputation.
To avoid these consequences, it’s essential to plan regular monitoring and maintenance of the site.
Tools like Google Analytics, Google Search Console, SEMrush, Ahrefs, and others can provide valuable data on your site’s health and help you identify and resolve issues promptly, thus keeping your site in excellent shape for SEO and a good user experience.
Let’s recap before concluding
In this journey through 16 SEO errors to avoid in 2024, we’ve explored some of the most common pitfalls that can hinder the path to digital success.
It’s clear that SEO is a complex and constantly evolving field that requires not only attention and precision but also a deep understanding of search engine dynamics and online user behavior.
Don’t let SEO errors hinder your online business
Join us at Qreativa, Italy’s leading SEO agency, awarded and certified. Together with one of our SEO specialists, you can transform SEO challenges into extraordinary opportunities.
Because, as Brian Gareth says in an article on Search Engine Journal, “without adequate knowledge, you might never discover why your site’s ranking and visits suddenly plummeted”.