by The Computing Australia Group | Avoid These SEO Mistakes
Most people searching online do not have the patience to scroll through endless search results. They usually click one of the most relevant results on the first page, compare a few options, and make a decision quickly. That means even small SEO mistakes can cost your business valuable traffic, enquiries, and conversions.
Search engine optimisation is not just about adding keywords to a page. It is about helping search engines understand your website while also giving real users a fast, useful, trustworthy, and easy-to-navigate experience. Google’s own SEO guidance explains that SEO is about helping search engines understand content and helping users decide whether they should visit your site.
For businesses in competitive markets such as Perth, SEO compliance should be treated as an ongoing process. Search engines continuously improve how they crawl, index, and rank websites. User expectations also change. A website that performed well a few years ago may now struggle if it is slow, poorly structured, thin on content, or not optimised for mobile users.
This guide explains the most common SEO mistakes businesses make and how to avoid them.
What Is SEO Compliance?
SEO compliance means building and maintaining your website in a way that follows search engine best practices. A technically sound, well-structured website makes it easier for search engines to crawl, interpret, index, and display your pages in search results.
However, SEO compliance is not only technical. A strong SEO-friendly website should also provide helpful content, clear navigation, fast loading times, secure browsing, relevant internal links, and a positive user experience. Google’s ranking systems are designed to prioritise helpful, reliable, people-first content rather than content created mainly to manipulate rankings.
Below are 21 common SEO mistakes that can hold your website back.
1. Keyword Stuffing
Keyword stuffing is the excessive or unnatural use of keywords in your content. It usually happens when businesses try to rank for a phrase by repeating it too many times.
For example:
“The Computing Australia Group provides quality SEO services. If you are looking to invest in SEO services, our SEO services team can help with SEO services for your business.”
This sounds unnatural and provides a poor reading experience.
Search engines are much better at understanding context than they used to be. You no longer need to repeat the exact same keyword over and over. In fact, doing so can make your content look spammy and reduce its quality.
How to avoid it
Use keywords naturally. Focus on answering the reader’s question clearly. Include related terms, synonyms, and useful explanations. For example, instead of repeating “SEO services Perth” in every paragraph, use phrases such as:
- search engine optimisation
- website optimisation
- local SEO
- technical SEO
- SEO strategy
- organic search visibility
The goal is to write for people first, then optimise for search engines.
2. Broken Links
Broken links create a poor user experience. When a visitor clicks a link and lands on a 404 error page, they may leave your website immediately. Broken links can also make it harder for search engines to crawl your site properly.
Broken links commonly occur when:
- a page URL is changed
- an old blog post is deleted
- an external website removes a page
- a product or service page is moved
- redirects are not set up correctly
How to avoid it
Run regular link checks across your website. Fix or remove broken internal links. If you have changed a page URL, set up a proper redirect to the new page. For external links, replace outdated sources with current, reputable ones.
A clean linking structure helps both users and search engines move through your website with confidence.
3. Publishing Inferior or Thin Content
Content remains one of the most important parts of SEO. Poor-quality content can make your website look unreliable, reduce engagement, and limit your ability to rank for valuable search terms.
Inferior content includes:
- vague articles with little useful information
- copied or rewritten content from other websites
- misleading headlines
- short pages that do not answer the search query
- generic content with no expertise or local relevance
- AI-generated content published without editing or fact-checking
A common mistake is writing for Google instead of writing for the user. Search engines want to show content that satisfies the searcher’s intent. If your page attracts clicks but fails to answer the reader’s question, users will leave quickly.
How to avoid it
Create content that is specific, practical, and relevant to your audience. For example, if your article is about common SEO mistakes, explain what the mistakes are, why they matter, and how to fix them.
Before publishing, ask:
- Does this page answer the reader’s question?
- Is the content original?
- Does it provide practical advice?
- Is it written clearly?
- Is it better than competing pages?
- Does it reflect real expertise?
Quality content builds trust, improves engagement, and supports long-term SEO growth.
4. Duplicate Content
Duplicate content occurs when the same or very similar content appears on more than one page. This can happen across different websites or within your own website.
Examples include:
- copying text from another website
- using the same service description across multiple location pages
- publishing near-identical blog posts
- allowing multiple URLs to show the same page
- duplicating manufacturer product descriptions
- creating printer-friendly pages without canonical tags
Duplicate content can confuse search engines because they may not know which version to index or rank.
How to avoid it
Create unique content for every important page. If similar pages are necessary, make sure each one has a clear purpose and unique value. Use canonical tags where appropriate and avoid publishing duplicate service or location pages with only minor wording changes.
For local SEO, do not simply copy the same page and replace the suburb name. Add genuinely useful local details, relevant services, examples, FAQs, and location-specific context.
5. Missing or Poorly Written Title Tags and Meta Descriptions
Title tags and meta descriptions help search engines and users understand what a page is about. While meta descriptions are not a direct ranking factor in the same way content relevance is, they can influence click-through rates from search results.
Common mistakes include:
- missing title tags
- duplicate title tags
- titles that are too long
- vague titles such as “Home” or “Services”
- missing meta descriptions
- automatically generated meta descriptions
- meta descriptions that do not match the page content
If you do not provide clear metadata, Google may generate its own snippet. That snippet may not always communicate your message in the best way.
How to avoid it
Write a unique title tag and meta description for each important page.
A good title tag should:
- include the main keyword naturally
- describe the page clearly
- include the brand where appropriate
- stay concise
A good meta description should:
- summarise the page
- include a benefit
- match search intent
- encourage users to click
Example:
SEO Title: Common SEO Mistakes to Avoid
Meta Description: Learn 21 common SEO mistakes that hurt rankings, traffic, and conversions, plus practical fixes to improve your website’s search performance.
6. Weak Internal and External Linking
Links help users navigate your website and help search engines discover and understand your pages. A weak linking structure can make important pages harder to find.
Common linking mistakes include:
- not linking to important service pages
- using vague anchor text such as “click here”
- linking to outdated or low-quality external sites
- having orphan pages with no internal links
- making users click too many times to reach key pages
- overusing nofollow tags on internal links
- ignoring broken links
How to avoid it
Use internal links strategically. Link from blog posts to relevant service pages, and link between related articles where it helps the reader.
For example, this blog could link to internal pages such as:
- SEO services
- web development services
- website maintenance
- local SEO
- WordPress SEO
- technical SEO audits
Use descriptive anchor text. Instead of “click here,” use “professional SEO services in Perth” or “technical website audit.”
External links should point to trusted, relevant sources. They can strengthen credibility when used properly.
7. Targeting the Wrong Keywords and Search Intent
Choosing keywords based only on search volume is a common mistake. A keyword may have many searches, but if it does not match what your customers need, it may not bring useful traffic.
Search intent is the reason behind a search query. For example:
- “What is SEO?” suggests an informational intent.
- “SEO company Perth” suggests commercial intent.
- “Hire SEO consultant Perth” suggests high purchase intent.
- “SEO audit checklist” suggests a practical research intent.
If your page does not match the intent, it is unlikely to perform well.
How to avoid it
Research keywords carefully and group them by intent. A service page should target commercial keywords. A blog post should answer informational queries. A comparison page may target users who are evaluating options.
For example, a user searching for “web development company in Perth” is likely looking for a provider. The page should explain services, experience, benefits, location relevance, proof of work, and clear contact options.
Long-tail keywords are especially useful because they are more specific and often closer to conversion. Examples include:
- “affordable SEO services for small business Perth”
- “WordPress SEO mistakes to avoid”
- “technical SEO audit for business websites”
- “how to improve local SEO rankings”
8. Not Having a Mobile-Friendly Website
Mobile optimisation is no longer optional. Google uses the mobile version of a site’s content for indexing and ranking, which is known as mobile-first indexing. Google strongly recommends mobile-friendly sites and advises that mobile content should be equivalent to desktop content.
A poor mobile experience can lead to:
- higher bounce rates
- lower enquiries
- poor user engagement
- reduced rankings
- lost sales
Common mobile issues include:
- text that is too small
- buttons that are hard to tap
- images that do not resize properly
- menus that are difficult to use
- slow loading pages
- content hidden on mobile
- forms that are hard to complete
How to avoid it
Use responsive web design. Test your website on different screen sizes and devices. Make sure your mobile pages load quickly, display the same important content as desktop pages, and make it easy for users to call, enquire, or purchase.
For local businesses, mobile usability is especially important because many users search while they are ready to take action.
9. Poor Blog Formatting
Even strong content can fail if it is difficult to read. Long blocks of text without headings, spacing, or structure can overwhelm readers.
Poor formatting affects:
- readability
- time on page
- engagement
- accessibility
- conversions
Search engines also use headings and structure to better understand the page.
How to avoid it
Format blog posts with:
- clear headings
- short paragraphs
- bullet points where useful
- descriptive subheadings
- bold text for key points
- images where they add value
- FAQs at the end
- a clear conclusion
Use heading tags properly. The page should usually have one H1, followed by logical H2 and H3 sections.
Good formatting helps readers scan the page and find the information they need quickly.
10. Not Optimising Images
Large, unoptimised images can slow down your website. Missing alt text can also affect accessibility and image SEO.
Common image SEO mistakes include:
- uploading large image files
- using generic file names such as IMG_1234.jpg
- missing alt text
- using images that do not add value
- not compressing images
- ignoring next-generation formats
- using images without set dimensions, causing layout shifts
How to avoid it
Before uploading images:
- resize them to the correct dimensions
- compress the file size
- use descriptive file names
- add helpful alt text
- choose modern formats such as WebP where suitable
- avoid unnecessary decorative images
For example, instead of uploading an image named image1.jpg, use a descriptive file name such as seo-mistakes-website-audit-perth.webp.
Alt text should describe the image naturally. Do not stuff keywords into alt text.
11. Not Promoting Blog Posts
Publishing a blog post is only the first step. If you do not promote it, fewer people will see it, link to it, or engage with it.
Many businesses publish content and then wait for search engines to send traffic. While organic rankings can develop over time, promotion helps content gain visibility sooner.
How to avoid it
Promote blog posts through:
- email newsletters
- Google Business Profile posts
- internal links from existing pages
- industry forums or communities
- sales team follow-ups
- relevant client resources
You do not need to be active on every social media platform. Focus on the platforms your audience uses.
For B2B and professional services, LinkedIn can be especially effective. For local businesses, Google Business Profile and Facebook may help improve visibility.
12. Publishing Inconsistently
Consistency matters. A website that has not published new content in years can look inactive. Regular publishing gives you more opportunities to target keywords, answer customer questions, and build topical authority.
However, consistency does not mean publishing poor-quality articles every day. Quality is more important than volume.
How to avoid it
Create a realistic content calendar. For many small businesses, one or two high-quality blog posts per month may be more valuable than frequent low-quality posts.
Focus on topics that support your services and answer customer questions. For example:
- common SEO mistakes
- how to choose an SEO agency
- local SEO checklist
- website redesign SEO checklist
- WordPress SEO tips
- how to improve page speed
Update older posts as part of your content plan. Refreshing existing content can often produce faster results than writing new content from scratch.
13. Ignoring Site Performance
Website speed affects user experience and conversions. Slow pages frustrate visitors, especially on mobile devices.
Google’s Core Web Vitals measure real-world user experience, including loading performance, responsiveness, and visual stability. Google also advises that site owners should focus on providing an overall good page experience rather than obsessing over only one signal.
Common performance issues include:
- large images
- too many plugins
- poor hosting
- bloated themes
- render-blocking scripts
- excessive tracking codes
- unoptimised CSS and JavaScript
- slow server response times
How to avoid it
Run performance tests regularly. Review Core Web Vitals in Google Search Console and PageSpeed Insights.
Practical fixes include:
- compressing images
- using caching
- reducing unnecessary plugins
- improving hosting
- minifying CSS and JavaScript
- using a content delivery network
- lazy-loading below-the-fold images
- removing unused scripts
A faster website improves SEO, user experience, and conversion rates.
14. Not Using Structured Data
Structured data, also known as schema markup, helps search engines understand the content and purpose of a page. Google explains that structured data can make pages eligible for rich results, although rich result display is not guaranteed.
Structured data can support enhanced search features such as:
- breadcrumbs
- FAQs
- reviews
- articles
- products
- local business details
- organisation information
How to avoid it
Add relevant schema markup to important pages. For a blog post, Article or BlogPosting schema may be appropriate. For a business website, Organization, LocalBusiness, BreadcrumbList, and FAQPage schema may also be useful depending on the content.
Google’s documentation says Article structured data can help Google understand more about a page and show better title text, images, and date information in search results.
Test schema using Google’s Rich Results Test before publishing.
15. Not Optimising for Voice Search and Conversational Queries
Voice search has changed how people phrase queries. Users often ask full questions rather than typing short keyword phrases.
Examples include:
- “What are the most common SEO mistakes?”
- “How do I improve my website ranking?”
- “Why is my website not showing on Google?”
- “Who offers SEO services near me?”
Voice search is closely connected to natural language and search intent. If your content answers clear questions, it has a better chance of matching conversational queries.
How to avoid it
Include natural question-based headings and concise answers. FAQ sections are useful when they genuinely answer common customer questions.
For example:
Question: Why is my website not ranking on Google?
Answer: Your website may not be ranking because of technical SEO issues, poor content, weak backlinks, slow loading speed, duplicate pages, or mismatched search intent.
This style helps both users and search engines understand the content quickly.
16. Ignoring Core Web Vitals
Core Web Vitals are part of page experience and focus on real user experience. They measure how quickly content loads, how responsive a page feels, and whether the layout remains stable while loading.
Ignoring these metrics can hurt usability and may limit SEO performance, especially in competitive search results.
How to avoid it
Monitor:
- loading performance
- interaction responsiveness
- visual stability
- mobile usability
- HTTPS
- intrusive pop-ups
- safe browsing issues
Common fixes include reducing JavaScript, optimising images, improving server response time, and avoiding elements that shift unexpectedly while the page loads.
17. Not Localising SEO Efforts
For businesses serving a specific city, region, or suburb, local SEO is essential. If your business serves customers in Perth, your website should make that clear.
Common local SEO mistakes include:
- not optimising Google Business Profile
- inconsistent business name, address, and phone details
- no local keywords
- no location-specific service pages
- few local citations
- no customer reviews strategy
- not embedding location relevance into content
How to avoid it
Strengthen your local presence by:
- optimising your Google Business Profile
- adding accurate contact details
- using local keywords naturally
- creating location-relevant service pages
- encouraging genuine reviews
- adding local case studies
- building citations on trusted directories
- using LocalBusiness schema where appropriate
For example, a Perth web development agency should mention Perth naturally in service pages, case studies, contact details, and local business information.
18. Overlooking HTTPS and Website Security
HTTPS is essential for trust. A website without a valid SSL certificate may be shown as “not secure” in browsers, which can discourage users from staying on the site or submitting forms.
Security also affects user confidence. If visitors are expected to share contact details, payment information, or business information, they need to know your site is secure.
How to avoid it
Make sure your site:
- has a valid SSL certificate
- redirects HTTP to HTTPS
- has no mixed content warnings
- uses secure forms
- keeps CMS, themes, and plugins updated
- has regular backups
- is protected against malware
Security is not only an SEO issue. It is a business trust issue.
19. Neglecting Competitor Analysis
SEO does not happen in isolation. Your rankings depend partly on how well your pages compare with competing pages.
If competitors are publishing stronger content, earning better backlinks, improving their site speed, or targeting better keywords, your website may fall behind.
How to avoid it
Review competitors regularly. Look at:
- what keywords they rank for
- how their service pages are structured
- how detailed their content is
- what internal links they use
- what backlinks they have
- how they present trust signals
- whether they use FAQs or schema
- how fast their pages load
Competitor analysis should not be used to copy. It should help you identify gaps and opportunities.
20. Not Updating Old Content
Old content can lose rankings if it becomes outdated. Search behaviour changes, competitors improve their pages, and industry best practices evolve.
An old blog post may include:
- outdated statistics
- old screenshots
- broken links
- irrelevant examples
- missing schema
- outdated SEO advice
- weak internal links
- no clear call to action
How to avoid it
Audit your content regularly. Update important pages with current information, better examples, improved formatting, stronger internal links, and clearer calls to action.
For this article, modern updates may include:
- Core Web Vitals
- mobile-first indexing
- structured data
- search intent
- people-first content
- local SEO
- content refreshes
- competitor monitoring
Refreshing content can improve quality and relevance without needing to start from scratch.
21. Missing Internal Linking Opportunities
Internal linking helps distribute authority across your website and encourages users to explore more pages.
A blog post about SEO mistakes should not sit alone. It should connect to relevant services and related articles.
Common internal linking mistakes include:
- no links to service pages
- no links from older posts to newer posts
- no links from high-performing pages to important pages
- using vague anchor text
- linking only from navigation menus
- leaving useful pages orphaned
How to avoid it
Create a clear internal linking strategy. Link from informational content to relevant commercial pages.
For example, from this blog post, you could link to:
- SEO services in Perth
- WordPress SEO services
- web development services
- website maintenance plans
- technical SEO audit services
- local SEO services
- content marketing services
Internal links should feel useful, not forced. Every link should help the reader take the next logical step.
Bonus Mistake: Ignoring Conversion Optimisation
SEO is not just about traffic. A website can rank well and still fail if it does not convert visitors into leads.
Common conversion issues include:
- no clear call to action
- weak contact forms
- no phone number on mobile
- unclear service descriptions
- no trust signals
- slow pages
- poor design
- confusing navigation
How to avoid it
Every important page should guide users toward action. Add clear CTAs such as:
- Book an SEO audit
- Talk to our Perth SEO specialists
- Request a website review
- Get help improving your rankings
- Contact our web development team
Also include trust signals such as testimonials, case studies, certifications, client results, and clear business contact information.
Conclusion
SEO is an ongoing process, not a one-time task. Search engines change, competitors improve, and users expect better online experiences every year.
The most common SEO mistakes often come from ignoring the basics: poor content, weak technical structure, slow pages, broken links, missing metadata, duplicate content, and poor mobile usability.
Start by fixing the issues that have the biggest impact:
1. Improve content quality.
2. Fix broken links and technical errors.
3. Optimise title tags and meta descriptions.
4. Improve mobile usability and site speed.
5. Add useful internal links.
6. Update old content.
7. Match content to search intent.
8. Add relevant structured data.
9. Strengthen local SEO.
10. Monitor performance regularly.
A well-optimised website helps search engines understand your business and helps users choose you with confidence.
The Computing Australia Group’s SEO Perth team can help your business build a stronger search engine optimisation strategy, improve technical SEO, and create content that attracts the right audience. To learn more, contact our specialists or email sales@computingaustralia.group.
Jargon Buster
Nofollow Attributes – a value assigned to metatag instructing search engines not to follow an outbound link.
Long-tail Keyword – three or four keywords or a key phrase that is more specific than a single keyword.
Page Crawl Depth – the number of clicks to reach a specific page.
CMS -stands for Content Management System. It is a software application for creating and managing enterprise and web content.
E-E-A-T – stands for Experience, Expertise, Authoritativeness, Trustworthness
Core Web Vitals – are a set of specific metrics introduced by Google to measure the quality of user experience on a website, particularly focusing on loading performance, interactivity, and visual stability.
WebP formats – is a modern image format developed by Google that provides superior lossless and lossy compression for web images.
Blake Parry
FAQ
What is the most common SEO mistake?
One of the most common SEO mistakes is creating content for search engines instead of users. Content should answer the searcher’s question clearly, provide useful information, and match the intent behind the keyword.
Can broken links hurt SEO?
Yes. Broken links create a poor user experience and can make it harder for search engines to crawl your website properly. Regular link checks should be part of your SEO maintenance process.
Why is mobile-friendly design important for SEO?
Google uses mobile-first indexing, meaning the mobile version of your site is used for indexing and ranking. A poor mobile experience can affect visibility, engagement, and conversions.
How often should old content be updated?
Important content should be reviewed at least every 6 to 12 months. Update pages sooner if rankings drop, information becomes outdated, links break, or competitors publish stronger content.
Do meta descriptions affect rankings?
Meta descriptions are not usually treated as a direct ranking factor, but they can affect click-through rates. A clear, relevant meta description can encourage more users to visit your page from search results.
