Search engine optimisation is multifaceted. So much so that even experienced marketing professionals commit common SEO mistakes that threaten to undermine their campaign performance.

Fortunately, these mistakes can be corrected to help you get back on track.

Here, we give you a rundown of 15 common SEO issues and provide workable solutions for fixing them.

Most Common SEO Mistakes to Avoid and Fix

These 15 common SEO mistakes are as follows:

1. Neglecting Keyword Research

Keyword research remains an important part of SEO. Failing to investigate the searches relevant to your business, industry and audience can send your content strategy in the wrong direction.

However, it is not necessary to force every exact keyword and variation into a blog post or web page. Modern search systems can understand context and related language. The goal is to understand what potential visitors are searching for, what questions they are asking and what problems they are trying to solve.

This allows you to create content that satisfies their intent and uses familiar language naturally.

What you can do:

Use keyword-research tools. Google Keyword Planner is a free tool to get you started. Paid platforms such as Ahrefs and Semrush offer additional data and competitive research features.
Explore specific queries. Long-tail keywords are typically lower-volume, highly specific searches. They are not defined by a fixed number of words and may attract users with clearly defined needs.
Analyse competitor visibility. Study the topics and searches for which competitors appear, but do not simply reproduce their content. Identify unanswered questions and opportunities to provide more useful or original information.
Assess search intent. Review the current search results to understand whether users expect a guide, service page, product, comparison, tool or another content format.

2. Keyword Stuffing

One of the most common mistakes is unnaturally inserting keywords into paragraphs, meta descriptions, anchor text and URLs.

This spammy SEO tactic sometimes worked when search engines were less sophisticated than they are today. It is now considered an outdated practice that creates a poor reading experience and may violate search-engine spam policies.

A paragraph that mentions a phrase such as “best pizza in Sydney” multiple times alongside forced variations is a typical example of keyword stuffing.

Admit it or not, it’s a pain in the neck to read.

Best practices for avoiding keyword stuffing:

Write naturally and use related terminology only when it improves clarity.
Don’t force grammatically incorrect search terms into your content. For example, change “athletic runners men” to natural language such as “athletic shoes for men.”
Avoid adding an unrelated subtopic merely to target a keyword.
Use synonyms where they genuinely fit, not as a mechanical replacement for repeated keywords.
Read the text aloud. If the language sounds forced or repetitive, revise it for the reader.

3. Ignoring Search Intent

Search or user intent is the purpose behind a query entered into Google, Bing or another search engine. If your content does not correspond to that intent, it is unlikely to perform consistently well for the query.

Four commonly used categories of intent include:

Navigational: Users aim to reach a specific website or page and already know where they want to go, such as “Gmail login.”
Informational: Users want to gain knowledge or understand a topic, such as “meditation benefits.”
Commercial: Users are comparing products or services before making a decision, such as “best smartphones.”
Transactional: Users are ready to take an action, often related to making a purchase, such as “buy smartphone online.”

These categories can overlap. A search-results page should be reviewed to understand the formats, information and level of detail users are likely to expect.

Case in point: if consumers want advice about features to consider in a smartphone camera, you might write an informative guide titled “How to Choose the Best Smartphone Camera.” A comparison such as “Top Smartphone Cameras for Photography” would better suit a user who wants to compare available options.

4. Duplicate Content

Duplicate content refers to pages that contain substantially the same information. These pages may exist within one website or across different channels.

Ordinary duplicate content does not automatically result in a Google penalty, and it does not necessarily prevent every version from ranking. Search engines commonly group duplicate or very similar URLs and select one representative version to display. Nevertheless, uncontrolled duplication can split signals, complicate tracking, waste crawling resources and cause a different URL from the one you prefer to appear in search results.

Run a site audit to identify duplicate URLs and determine why they exist.

Use a canonical element when similar pages need to remain accessible but you want to indicate a preferred version. Use a 301 redirect when an old or duplicate URL is no longer needed, and users should be permanently sent to the replacement. Maintain consistent internal links and include preferred URLs in your sitemap.

5. Focusing on Quantity Instead of Quality in Backlinks

This is not to say that having many backlinks is inherently bad.

However, links should be earned legitimately from relevant and reputable sources. A few useful editorial links can be more valuable than numerous links from low-quality websites.

Low-quality, purchased or manipulative links may violate Google’s spam policies. Patterns such as excessive transactional anchor text, for example, “buy high-quality wireless headphones”, can look unnatural when created primarily to influence rankings.

Focus on producing original resources, research, tools and other content that people genuinely want to reference. Paid links should generally be qualified with rel="sponsored", while other links that should not be treated as editorial endorsements may require nofollow.

Also read: 4 Pillars of SEO: Everything You Need to Know

6. Not Leveraging Internal Links

Internal links connect one page of your website to another. They help search engines discover pages and understand your site’s structure and relationships.

Most importantly, internal links help visitors find other relevant information they may want to explore.

Pages with no internal links may be difficult for users and search engines to discover. Skipping internal linking is therefore a missed opportunity.

Best practice: Add internal links wherever they are genuinely useful rather than following an arbitrary number for every page. Use concise, descriptive anchor text that provides context about the destination. Make sure important pages receive relevant internal links and identify orphan pages during periodic audits.

7. Not Fixing Slow Pages

Page performance is an important part of user experience. Slow-loading or unresponsive pages can cause people to leave and may reduce enquiries, sales and other conversions.

Google’s page-experience guidance includes the current Core Web Vitals:

Largest Contentful Paint (LCP): Loading performance
Interaction to Next Paint (INP): Responsiveness
Cumulative Layout Shift (CLS): Visual stability

Good Core Web Vitals can contribute to search success and a better user experience, but they do not guarantee higher rankings. Relevance, usefulness and overall page quality remain essential.

Run Google PageSpeed Insights to review available real-user field data and controlled laboratory diagnostics. Potential improvements include:

Effective browser and HTTP caching
Compressing and appropriately sizing images
Compressing, reducing or deferring unnecessary CSS and JavaScript
Limiting unnecessary redirects
Improving server response time
Reserving space for images, advertisements and embeds to reduce layout shifts

8. Under-Optimising Local SEO

Some businesses make the mistake of focusing on one part of their SEO campaign while forgetting other important opportunities.

Local SEO is one of them.

If you own and manage a local business, whether it’s a dental clinic in Parramatta or a smash repair shop in the Eastern Suburbs, optimising for local search can help nearby customers discover it.

Failing to do so means you may miss potential customers within the community.

Maintain an accurate and verified Google Business Profile. Keep the business name, address or service area, phone number, categories, operating hours, website and photographs current.

Local SEO can also involve earning relevant local citations, creating useful location pages, maintaining consistent business information, building legitimate local links and asking customers for honest reviews without incentives. Respond professionally to both positive and negative feedback and follow Google’s review policies.

9. Failing to Optimise for Mobile

Google uses the mobile version of a site’s content for indexing and ranking. Failing to provide a usable mobile experience can therefore harm visitors and limit your site’s performance.

Google’s former Mobile-Friendly Test and Search Console Mobile Usability report were retired in December 2023. Instead, use Chrome Lighthouse, PageSpeed Insights, responsive-design testing in browser developer tools and tests on representative real devices.

Improve your website’s mobile experience by:

Using responsive design: Serve the same core content and functionality while adapting the layout to different screen sizes.
Delivering suitable images: Use sharp images at appropriate dimensions, responsive image markup and efficient file sizes.
Maintaining content parity: Ensure important mobile content, headings, structured data and metadata are equivalent to the desktop version.
Making controls usable: Buttons and links should be easy to identify and tap without accidental activation.
Avoiding intrusive overlays: Do not obscure the primary content with unnecessary interstitials.

Pro tip: Test the experience on your own mobile devices. Put yourself in the visitor’s position, use the navigation, complete important actions and record any problems that need attention.

10. Spamming Structured Data

Structured data can make eligible content qualify for certain rich-result formats and may help search engines understand information on a page. However, correct markup does not guarantee that a rich result will appear, nor is structured data a shortcut to higher ordinary web rankings.

Some websites misuse this feature by marking up irrelevant, misleading or invisible content in an attempt to gain greater search visibility.

Avoid this mistake by using only structured-data types supported for the page’s actual content. For example, use Product markup for a genuine product page only when the required information is present and visible to users.

Do not mark up content that readers cannot see. Follow Google’s general and feature-specific structured-data guidelines, validate the page with the Rich Results Test and monitor relevant Search Console reports.

11. Publishing Unnecessarily Long Content

There is no universal word count that Google prefers. Content should be long enough to satisfy the reader’s needs and no longer than necessary.

Unless it is an in-depth guide that genuinely requires extensive coverage, readers may prefer a concise answer. They may not have the time or need for unnecessary background and repetition.

Write a longer piece when the subject requires it, such as explaining a complex legal process or comparing multiple software solutions.

For a straightforward topic such as “how to boil an egg,” it does not make sense to write a 2,000-word essay. Readers generally need concise, reliable instructions.

A short, direct guide can satisfy the reader’s needs and perform well in search. A thorough guide can also perform well when its depth is genuinely useful.

Pro tip: Match the length and format of your content to the complexity of the topic and the audience’s needs. Sometimes brevity is best; other times, a detailed explanation provides greater value.

12. Using Unoptimised Page Titles and Meta Descriptions

Your page title may be used as the title link in search results, while the meta description may be used for the accompanying snippet. Google can generate alternative title links and snippets from other page content when it considers them more useful for a particular query.

Titles and descriptions should be clear, compelling and relevant in your content optimisation strategy. Generic, misleading or duplicated metadata can reduce a result’s usefulness and cost you clicks.

Common problems include missing, duplicated, vague, excessively long or keyword-stuffed titles and descriptions.

Google does not specify fixed character limits for either element. Search results truncate text as needed, typically according to the available device width. Write a concise, descriptive and unique title for each important page. Provide an accurate meta description that summarises what readers can expect and naturally mentions the main subject where appropriate.

13. Missing or Unhelpful Alternative Text

Alternative text describes the meaningful content or purpose of an image for people who cannot see it, including people who are blind or have low vision and use screen readers. It can also provide context when an image fails to load.

Alternative text primarily serves accessibility. It can also help search engines understand an image, but adding it does not automatically make a page or image rank higher.

Take the time to write concise, contextual descriptions for meaningful images. Avoid stuffing keywords into alt attributes. Decorative images should generally use an empty alt="" attribute so assistive technology can ignore them.

14. Writing for Search Engines First

Writing for search engines first means creating content primarily to manipulate rankings rather than to help people.

This often leads to tactics mentioned above, including keyword stuffing, unnecessary word count, repetitive pages and low-value content.

Prioritise your human readers while making the page accessible and understandable to search engines:

Create helpful content: Provide original, accurate and useful information that answers the audience’s questions.
Demonstrate experience and expertise: Include first-hand insight, clear authorship, evidence and reliable sources where appropriate.
Use natural language: Write in a conversational and professional tone without forcing keywords.
Prioritise readability: Use suitable sentences, paragraphs, headings and lists to make information easy to follow.
Address user intent: Understand the reason behind the query and provide a satisfying response.
Use media purposefully: Add images, videos, charts or other media when they genuinely improve understanding.
Review AI-assisted work: Fact-check it, add original expertise and ensure the final article provides value beyond a generic summary.

15. Failing to Make Continuous Adjustments

SEO is not a one-and-done or band-aid solution to online marketing challenges. Rankings can last for a long time, but they are not permanent.

One of the biggest SEO mistakes is putting your strategy on autopilot and forgetting about it.

Ignoring the need for appropriate adjustments can leave your website with outdated information, unresolved technical problems and missed opportunities.

Search systems evolve, competitors publish new material, user behaviour changes, and information becomes outdated. However, avoid making impulsive changes in response to every unverified algorithm rumour. Base decisions on reliable guidance, actual website data and the needs of your audience.

Do not let these common errors cost you hard-earned SEO traffic. Stay on top by:

Monitoring meaningful website performance with tools such as Google Analytics 4 and Google Search Console.
Following official Google Search documentation and reputable industry analysis rather than reacting to speculation.
Performing periodic technical, content and link audits to identify and prioritise genuine issues.
Updating existing content when facts, products, examples or user needs materially change. Do not change dates merely to make unchanged content appear fresh.
Measuring outcomes such as qualified enquiries, sales and engagement rather than focusing only on rankings and traffic.

Avoid These Common SEO Pitfalls and Partner With Domain Bird

Overcome these common technical, content, off-page and on-page SEO mistakes with professional help from a digital marketing agency. Domain Bird is a results-focused, Sydney-based search marketing company with more than 10 years of experience.

Our SEO experts have helped plumbers, electricians, mechanics, accountants, lawyers, ecommerce businesses and others make online marketing more profitable. We want to help your business next.

Book a consultation today and request your free site audit. Strengthen your search visibility and improve your SEO performance with Domain Bird.