20 SEO Mistakes That Will Hurt Your Website Rankings

Hello!

SEO isn’t a task you can tick off once a year. It is an ongoing process that demands continuous monitoring and steady improvement.

Moreover, SEO is highly competitive. Even small oversights can allow competitors to outrank you. With numerous tasks on their plate, webmasters often miss critical SEO errors that lead to lost visibility. The good news is that most of these issues are straightforward to fix.

In this post, we highlight 20 common SEO mistakes you should avoid to strengthen your search performance.

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#1 Not optimizing for the mobile era

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How does your website perform on mobile devices? As mobile searches have already surpassed desktop ones, search engines reward mobile-friendly websites and penalize sites that are not optimized for mobile devices.

To quickly check how user-friendly your page is on mobile, use the free Mobile-Friendly test:

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#2 Creating duplicate content

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Duplicate content appears in more than one place on the internet, either on the same domain or across different sites. It remains one of the most frequent SEO issues for e-commerce websites, where numerous product pages often share very similar text.

When search engines encounter duplicate content, they struggle to decide which version to index and may exclude the pages from search results altogether.

To prevent this, always create unique content, including body text, meta tags, and URLs.

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#3 Having slow loading speed

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If you want to grow your business, a fast website is essential. Page speed influences both search rankings and user satisfaction. The longer a page takes to load, the lower it tends to rank in search results.

The most common causes of slow loading include oversized images and inefficient JavaScript. Google’s PageSpeed Insights provides a detailed performance report for both mobile and desktop versions, along with actionable recommendations for improvement.

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#4 Ignoring Alt tags

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Image alt tags are frequently overlooked. Search engines use them to understand the content of images and how they relate to surrounding text. Optimizing images also opens up an additional source of organic traffic through image search results.

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#5 Ignoring title tags and meta descriptions

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Title tags and meta descriptions help search engines understand page content and generate search snippets. Duplicating or omitting them wastes valuable optimization opportunities.

Many sites reuse the same meta description across multiple pages, which harms SEO performance. Unique, compelling titles and descriptions improve both rankings and click-through rates from search results.

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#6 Not setting an internal linking structure

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Internal linking is a key element of both user experience and SEO, yet it is often neglected. It helps search engines discover and index new pages faster while passing link equity to support their rankings.

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#7 Targeting the wrong keywords

Choosing the wrong keywords often leads to poor rankings. This usually happens in two ways:

High competition keywords

Attempting to rank for highly competitive terms without established authority is rarely effective. It is better to target specific, lower-competition keywords that still match your audience. Most keyword tools, including Ahrefs, Serpstat, and Moz, display a keyword difficulty score to guide this decision.

Wrong search intent

Targeting informational queries on e-commerce sites is another frequent mismatch. Tools like Ahrefs list modifiers that help align content with commercial intent, such as “review” or “best.”

To build a relevant keyword list, use traditional keyword research in Serpstat and apply appropriate filters. Enter your target term, select the country, and use filters such as “Keywords > Includes > review” or “Keywords > Includes > best” to surface commercial queries. You can further refine results by keyword difficulty.

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#8 Not optimizing for local search

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If your business serves a specific geographic area, neglecting local SEO means missing significant visibility. Include location-specific keywords in your content, titles, and meta descriptions. Also add your address and local phone number, and list your business on relevant local directories.

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#9 Keyword stuffing

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Keyword stuffing damages both rankings and brand perception. Overloading content with repetitive keywords makes it appear unnatural and triggers search engine penalties. As Google states, the focus should remain on creating useful, information-rich content that uses keywords naturally and in context.

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#10 Producing low-quality content

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High-quality content forms the foundation of effective SEO. Many e-commerce sites publish large volumes of thin blog content that offers little value. Low-quality pages increase bounce rates, which can negatively affect rankings over time.

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#11 Not refreshing old content

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While creating new content is important, updating and optimizing existing assets often delivers faster results. Older pages that already have some authority can be improved with relatively little effort.

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#12 Not bothering user experience

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Since the introduction of the RankBrain algorithm in 2026, Google has placed greater emphasis on user behavior signals such as bounce rate, dwell time, and organic click-through rate. Beyond mobile optimization, content quality, and speed, several other factors influence user experience:

• Navigation — clear structure, intuitive menus, and site search functionality.
• Design — responsive layouts that work well on all screen sizes and easy-to-tap buttons.
• Pop-ups — intrusive overlays should be avoided or made easy to dismiss.

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#13 Building irrelevant links

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Backlinks remain a major ranking factor. Research from Backlinko shows that the number of referring domains correlates strongly with higher rankings. However, relevance and quality matter far more than quantity. Irrelevant links provide little value and can even harm your site’s authority.

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#14 Linking to low-quality pages

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Requests to add external links in exchange for payment or services often involve low-quality content. Linking to such pages can reduce your site’s overall authority.

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#15 Not fixing broken links

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A large number of broken links wastes crawl budget and signals to search engines that your content may be outdated, negatively affecting rankings.

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#16 Not setting clear content structure

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Proper content structure improves both readability and SEO. Using HTML headings to organize sections and subsections helps users scan content and gives search engines more opportunities to understand and rank your pages.

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#17 Using similar anchor texts everywhere

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Overusing generic phrases such as “click here” wastes ranking opportunities and may trigger penalties. A balanced anchor text profile works best. Brian Dean recommends the following distribution:

• Branded anchor text: 70%
• Naked links: 20%
• Generic anchors: 5%
• LSI and partial match anchors: 1–5%
• Exact match anchor text: less than 1%

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#18 Not checking recently updated pages’ technical optimization

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Any change to content or structure can introduce new technical issues. Tools such as Serpstat’s Page Audit feature allow quick analysis of individual pages and provide specific improvement recommendations.

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#19 Not building your site architecture

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A clear site structure supports efficient crawling. Missing sitemaps, overly complex URLs, or inadequate robots.txt directives prevent search engines from indexing your content properly. Many businesses choose to outsource SEO to specialists to handle these technical aspects effectively.

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#20 Not tracking your results

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Without regular tracking, you cannot know whether your SEO efforts are working. Focus on broader KPIs such as organic traffic, click-through rate, and ROI rather than individual keyword positions alone.

So, how to improve your website rankings by avoiding SEO mistakes?

More than 200 ranking factors influence search visibility, and the full Google algorithm remains unknown. The most effective approach begins with creating genuinely useful content for your audience. Once the content is compelling and valuable, optimize it with appropriate SEO techniques.

By avoiding the 20 SEO mistakes outlined above, you can steadily improve both your content quality and your website rankings.

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