Common SEO Mistakes That Could Be Hurting Your Rankings

Some of our clients come to us convinced they’re doing everything right. Their content is optimized, their keywords are mapped, and their pages look clean. But the leads have stalled, the rankings won’t budge, and nobody can explain why. We’ve seen this pattern across hundreds of accounts since 2009, and the culprit is almost always a handful of avoidable mistakes quietly working against them.

The stakes are high because the top of the page is where the clicks live. Backlinko’s analysis of Google search results found that the top three organic results capture roughly 54% of all clicks. Everything below that fights for scraps.

This guide is current for 2026 and the AI-search era, when ranking in Google’s classic blue links is no longer the whole story. Here are 12 common SEO mistakes we see most often, along with how to fix each one so you stop sabotaging your own results.

1. Ignoring Search Intent

The most common reason “optimized” content still doesn’t rank is a mismatch between what you published and what the searcher actually wanted. You can nail your keyword, your headings, and your word count, and still lose if you answer the wrong question.

Search intent falls into a few clear buckets, and each one calls for a different page:

• Informational intent wants an explanation. Someone searching “what is local SEO” wants a definition, not a sales pitch.
• Commercial intent wants a comparison. Someone searching “best CRM for small business” wants a ranked list, not a single product page.
• Transactional intent wants to act. Someone searching “hire SEO agency” wants a service page they can convert on.

When we audit a client’s underperforming pages, intent mismatch is one of the first things we check. A guide sitting where users want a comparison, or a service page sitting where users want a definition, will underperform no matter how polished it is. Before you write, read the current search results and the People Also Ask box for your target query, then match your format to what’s already winning. If you want help mapping content to the right intent, our team can walk you through a proven SEO strategy built around it.

2. Using Raw AI Content

AI writing tools are everywhere now, baked into editors, keyword generators, and brainstorming assistants. Using them isn’t the mistake. Publishing raw, unedited AI output with no expertise or original insight is.

There’s a real line between AI-assisted and raw AI. AI-assisted content is human-edited, fact-checked, and enriched with first-hand experience the model can’t produce on its own. Raw AI content is thin, generic, and instantly replaceable by the next person prompting the same tool. Google’s ongoing helpful-content and core-update stance rewards the first and quietly buries the second. The search engine has been clear that it ranks “original, high-quality, people-first content” that demonstrates E-E-A-T, meaning expertise, experience, authoritativeness, and trustworthiness.

We’ve watched client rankings slip after pages of raw AI content went live, and recover once those pages were rewritten with genuine expertise and specifics. Raw output rarely clears the E-E-A-T bar, so it tends to sit on the third page of results and stay there. Use AI to speed up ideation and drafting, then add the experience, examples, and judgment that make the page worth ranking. Our guide to a winning SEO content strategy shows how we use quality content to improve rankings, and our beginner’s guide to what SEO is covers the fundamentals.

3. Overlooking AI Search Visibility

Ranking in the classic blue links is no longer the whole game. AI Overviews, ChatGPT, Perplexity, and Gemini now answer many queries directly, which means a page can “rank” and still lose the click if it isn’t structured for AI engines to retrieve and cite it.

This shift is already large. Pew Research found that roughly one in five Google searches produced an AI summary by March 2025, and Search Engine Land reported that AI Overviews peaked near 25% of queries in mid-2025. If a quarter of searches can be answered without a click, the pages that get quoted inside those answers win the visibility your competitors are losing.

Getting retrieved comes down to a few concrete habits:

• answer the question clearly and early, ideally in the first paragraph under a heading.
• use descriptive headings that state what the section covers.
• add structured data so engines can parse your page.
• include an FAQ that maps to real questions people ask.
• build topical authority so engines trust you on the subject.

We treat AI visibility the same way we treat everything else, as something you measure, not guess at. If you want to understand how AI search changes your strategy, our breakdown of SEO versus GEO explains generative engine optimization in plain terms.

4. Not Updating Old Posts

Readers don’t want to click an outdated page when a fresher one sits right next to it in the results. A recent publish date signals relevance, especially for high-converting keywords, and updating that date can lift a page’s performance once it’s part of your structured data markup.

This isn’t to say old pages can’t perform. Many of our clients still have pages published years ago that rank and convert. The point is that a disciplined refresh motion, updating content, refreshing dates, and re-optimizing for better keywords, keeps those wins alive instead of letting them decay.

If your page shows a publication date, refresh the content and add a short note at the top: this post was originally published on X date and has been updated for quality and accuracy. While you’re in there, hunt for broken links, since older posts tend to point to pages that no longer exist. You can validate and repair links using Google Search Console, which flags crawl and link issues directly from the source. Better still, re-optimize those older posts around more valuable keywords and work the keyword into the URL. Our guide on how often you should update your SEO covers the cadence we recommend.

5. Ignoring Local SEO Factors

Local search drives a huge share of buying activity. Backlinko’s local SEO research reports that 72% of consumers use Google Search to find local businesses, and eight in 10 U.S. consumers search for a local business online at least once a week.

Google connects businesses to searchers based on relevance and proximity, and local searchers convert fast. If you’re not optimizing for local queries, you’re leaving qualified traffic and customers on the table. Start by claiming and optimizing your Google Business Profile. If you want the fundamentals first, see our guide on what local SEO is, and if you run a local service business without a storefront, we’ve covered local SEO for service-area businesses.

After your profile is set up, focus on reviews. Backlinko’s local SEO research shows that 75% of consumers always or regularly read online reviews when researching local businesses, so a strong review profile influences both rankings and buying decisions. Encourage happy customers to leave reviews, and don’t stop there. Engage with every review you get. Thank the people who leave positive feedback, and promise the ones with complaints a better experience next time. Make it a habit to respond to every review, since customers who feel seen are far more likely to come back. For a deeper playbook, read our guide to review management for local businesses, or explore our local SEO services.

6. Targeting Short-Tail, High-Volume Keywords

Ranking on the first page is brutally competitive, and it’s worst when you chase short-tail, high-volume keywords. The problem is simple: sites with high domain ratings already own those terms.

You can only unseat them if you also have a high domain rating (above 50) and a strong backlink profile. The exception is topical authority. A site that specializes deeply in one niche can outrank bigger sites on a specific keyword because it has earned trust on that exact topic. We’ve seen niche pages beat far larger competitors this way, which is why we help clients pick winnable keywords instead of vanity terms.

The better play is to find low-volume, long-tail keywords with higher buyer intent. Backlinko reports that long-tail keywords make up roughly 92% of all search queries. A term like “best insurance plans” might carry a keyword difficulty near 95, which is nearly impossible to crack. But narrow it to “best dental insurance plans for implants” or “best health insurance plans for self-employed,” and the difficulty drops into the low 50s. You have a far better shot at those specific terms, and they tend to convert better too. This doesn’t mean you scrap short-tail keywords entirely. It means long-tail terms deliver less competition and higher conversion rates.

7. Relying on Outdated SEO Practices

SEO has changed a lot in the last 10 years. The strategies that worked to rank old posts don’t work today. If you’re unsure whether you’re still stuck with old SEO practices, here are two major ones:

• Keyword stuffing
• Buying poor-quality backlinks

Keyword stuffing worked in the past because keyword density was a ranking factor. Google now prioritizes natural language processing to get the semantic relationships around a keyword. This is sometimes why posts without a particular keyword in their title end up ranking for it. It’s also why a blog post usually has a lot of keywords, even if the writer didn’t intentionally optimize for them.

Updates like Google Panda penalize any website with obvious signs of keyword stuffing in their content. This usually leads to reduced ranking or de-indexed pages from search results entirely.

Another issue is link buying. Google’s mission to keep users safe while providing relevant answers to user queries made it value high-quality backlinks as a signal of a website’s authority and relevance. But people caught on to how it works and resorted to buying links regardless of where they came from. The result was low-quality content ranking high on the SERPs.

Google’s Penguin update disrupted the practice, penalizing sites with poor-quality backlinks. Link building for SEO is still in practice, but this time, it works for sites that naturally earn links through guest posting, PR, and other legitimate link-building practices.

If you’ve been relying on outdated SEO practices like keyword stuffing and low-quality link building, here are a few tips to speed you up to date:

• Target one primary keyword per blog post.
• Use this keyword in your headings and at least after every 100 words.
• Prioritize readability over keyword inclusion.
• Build relationships with other high-quality websites for link-building outreach.
• Identify and remove spammy links.
• Avoid paid links and link farms.
• Monitor the backlink profile periodically.

8. Keyword Cannibalization

Keyword cannibalization happens when multiple web pages from the same website target similar keywords. Search engines find it hard to distinguish which page is most relevant for the target keyword. The crawler bots end up splitting traffic between the two posts, and this can reduce their ranking potential.

You can target the same keyword only if the search intent differs significantly enough that it is clear and identifiable not only to users but also to search engines. For example, Reedsy has multiple pages for the keyword “how to publish a book.” On a closer look, each page fulfills a different search intent and targets various keywords:

• How to publish a book in 2024: Serves an informational intent with general and recent details about publishing a book.
• How to publish a book on Amazon: Is targeted specifically for those looking to publish on Amazon.
• How to publish a book for free: Is targeted at those looking for cost-free ways to get published.

If your content team lacks a tracking system for keywords already used, it can lead to duplicate blog content for the same keyword. To deal with potential keyword cannibalization issues, run a content audit to identify pages with similar keywords. Here’s how you do that:

• Head to Google and search for “site:yourwebsite.com keyword.” You’ll see all the pages on your site related to that topic.
• If we do this for “site:warmupinbox.com “cold email outreach””, you can see that the first three results are the ones in the example above.

If two articles address the exact same search intent, a quick fix would be to merge or combine articles. Otherwise, rewrite one of the articles to address a different search intent.

9. Overlooking Schema Markup

Schema is not a direct ranking factor, but it carries major advantages. Websites with schema markup display rich snippets, which Google pulls to give users more information about a query. Picture someone searching for logo design services. One result shows review stars, another shows a category bar, and a third shows nothing extra. The pages with markup grab attention and address the search intent more directly, so they earn more clicks.

Schema matters even more in the AI-search era. Structured data helps AI engines and rich-results systems understand what your page is about and surface it, which ties directly back to the AI visibility mistake earlier in this list. It’s what makes your content eligible for review stars, FAQ rich results, and citation inside AI Overviews, so it’s worth the effort to add. Use the Schema Markup Validator to see which Google rich results your page can generate.

10. Not Fixing Crawl Errors

Crawl errors quietly block your rankings, and they’re exactly the kind of problem that surprises marketing teams without a developer on call. They stop search engines from crawling your site and shrink its discoverability, and they show up at both the site level and the URL level.

Site errors include:

• DNS errors, which happen when problems with your domain name system prevent search engines from reaching your domain.
• Server errors, which occur when issues like timeouts or connection resets stop search engines from loading your content.
• Robots.txt errors, which arise when search engines can’t read the file that tells them which pages to crawl and which to skip.

URL errors cover:

• 404 errors, which occur when search engines can’t find a specific URL.
• Soft 404 errors, which happen when a page should return a 404 response but doesn’t.
• 403 forbidden errors, which happen when a URL is blocked from search engines.

Here’s how to fix them, even without technical staff:

• Check Google Search Console to identify crawl errors from the source.
• Follow the recommendations to resolve each issue.
• Use 301 redirects to send pages with 404 errors somewhere useful.
• Remove or fix broken links.
• Update your robots.txt file so it’s accessible.

This is one of the first areas we surface in a technical audit, because these issues are invisible until you go looking for them.

11. Ignoring Site Optimization

You can get on-page and off-page SEO right and still fall short if you ignore technical SEO. Your site isn’t properly optimized if it loads slowly, doesn’t display well on mobile, carries oversized images or missing alt text, has crawl errors, uses an inconsistent URL structure, or serves the same URL for international versions.

Page speed now has a formal name and formal metrics. Google’s Core Web Vitals measure three things in plain terms:

• LCP (Largest Contentful Paint) measures how long your main content takes to load. Slow LCP makes visitors wait, and they bounce.
• INP (Interaction to Next Paint) measures how quickly your page responds when someone clicks or taps. Sluggish INP feels broken.
• CLS (Cumulative Layout Shift) measures how much your page jumps around while loading. High CLS makes people click the wrong thing and lose trust.

All three affect rankings and conversions, and they’re usually the first things we tackle in a technical audit. Here’s how to optimize the rest of your site:

• Run a full SEO audit with tools like Google Search Console to identify and fix issues.
• Compress images and media to reduce page weight without hurting quality.
• Add descriptive alt text to every image for image SEO and accessibility.
• Use Google PageSpeed Insights to find slow elements and fix them.
• Test your site regularly to confirm it performs well on phones and tablets.
• Keep URLs clean and logical, favoring /category/product-name over /product-345.
• Use country-specific subdirectories or subdomains to create separate URLs for different regions.

For the full picture of what technical optimization involves, see our guide to mobile SEO.

12. Not Monitoring SEO Efforts

Ranking isn’t about churning out articles, even optimized ones. You have to track how your content performs, because that’s how you catch a missed step before it costs you. Without monitoring, you won’t see how traffic, SERP position, bounce rate, and CTR shift over time.

Google Search Console presents clicks, impressions, CTR, and position in one clean interface, so you can gauge the overall health of your site. Other tools add more analytics on top of it, but the goal stays the same: turn data into decisions.

This is where continuous optimization comes in, and it’s the heart of how we work. Our proprietary InSite reporting dashboard gives clients transparent, always-on visibility into their performance, and it feeds our Targeted Growth System, which uses that data to refine strategy over time rather than set it and forget it. Monitoring isn’t a one-time check. It’s the engine that keeps everything else on this list working. For more on why this matters, read our guide to SEO monitoring.

Frequently Asked Questions

What Is the Most Common SEO Mistake

Ignoring search intent is the one we see most often. Marketers optimize a page for a keyword but publish the wrong format for what searchers actually want, so the page underperforms no matter how technically clean it is. Read the search results and People Also Ask box before you write, then match your format to what’s already ranking.

Does AI Content Hurt SEO

Raw, unedited AI content hurts SEO because it’s thin, generic, and rarely meets Google’s E-E-A-T standard. AI-assisted content that a human edits, fact-checks, and enriches with real expertise is fine, and often helpful. The mistake is publishing model output as-is with no original insight.

How Do I Show Up in Google’s AI Overviews

Structure your content so AI engines can retrieve it. Answer questions clearly and early, use descriptive headings, add structured data, include an FAQ, and build topical authority on your subject. Pages that state clear answers under clear headings are the ones AI engines tend to quote.

How Do I Fix Keyword Cannibalization

Run a content audit using a “site:yourwebsite.com keyword” search to find pages competing for the same term. If two pages serve the exact same search intent, merge them into one stronger page. If the intent differs, rewrite one so each page targets a distinct query.

Wrapping Up

We’ve offered SEO services since 2009, and that experience is exactly why we can spot these mistakes fast. These 12 are among the most common issues we see, but they’re not the only ones that can stall your traffic and leads. Fixing them gets you closer to winning, and in the AI-search era, that means content strong enough to earn rankings, citations, and natural backlinks alike.

The difference between a one-time fix and lasting growth is continuous optimization, which is the foundation of our Targeted Growth System. We use it to fix these issues systematically and keep improving your results over time. Request a proposal to see how we’d fix these issues for your site.