You can have a great-looking website and excellent content, but if search engines struggle to find, crawl or understand your pages, your website may not reach its full potential.
That’s where technical SEO comes in.
Technical SEO is a key part of any successful search engine optimisation strategy. It focuses on the technical elements of your website that help search engines discover and understand your content while providing visitors with a smooth, reliable experience.
At Optimus Visibility, we believe effective SEO involves looking at the bigger picture. From website structure and page speed to indexing and mobile usability, getting the technical foundations right can help support better search visibility and long-term online growth.
In this guide, we explain what technical SEO is, why it matters and how you can improve your website’s performance in search results.
What Is Technical SEO?
Technical SEO is the process of optimising a website’s infrastructure so search engines can access, crawl, interpret and index its pages effectively.
While on-page SEO focuses on elements such as content, headings and keywords, technical SEO looks at how the website works behind the scenes.
This includes areas such as:
- Website crawlability and indexability.
- Page speed and website performance.
- Mobile usability.
- Website architecture and internal linking.
- XML sitemaps and robots.txt files.
- HTTPS security.
- Redirects and broken links.
- Canonical tags and duplicate content.
- Structured data and schema markup.
These elements help create a solid foundation for your wider SEO strategy.
Technical SEO does not guarantee higher Google rankings on its own. However, identifying and fixing technical problems can remove barriers that prevent useful content from being discovered or performing as well as it could.
Why Is Technical SEO Important?
Search engines need to discover and process your website’s content before they can consider it for relevant search results. Technical problems can make this process more difficult.
A technically sound website also gives visitors a better experience, making it easier for them to find information and engage with your business.
Help Google Find and Index Your Pages
Crawling is the process by which search engine bots discover and access pages on your website. Indexing involves processing and storing information about those pages so they can potentially appear in search results.
If important pages are blocked from crawling, inaccessible or marked with incorrect indexing directives, they may not appear in Google as intended.
A technical SEO audit can help identify these issues and ensure your most valuable pages are accessible to search engines.
Improve Website Speed
Website performance affects how visitors experience your site. Slow-loading pages can be frustrating, particularly for people browsing on mobile devices.
Improving page speed can make your website feel more responsive and support a better user experience.
Useful areas to review include image sizes, unnecessary scripts, server response times, caching and the way page content loads.
Create a Better User Experience
Technical SEO and user experience are closely connected.
Visitors should be able to navigate your website easily, find the information they need and complete actions such as submitting an enquiry or making a purchase.
A clear website structure, working links, responsive design and reliable performance all contribute to a more effective website.
Support Your Wider SEO Strategy
Your content and keywords need a technically accessible website to reach their full potential.
If you invest in SEO content but important pages cannot be indexed, you may not see the visibility you expect. Addressing technical issues helps support your content strategy, internal linking and wider organic search efforts.
7 Technical SEO Improvements Every Business Should Consider
You don’t need to understand every technical detail of search engine optimisation to start improving your website. These seven areas provide a practical starting point.
1. Check Your Website’s Indexing
One of the first steps in technical SEO is checking whether Google can index your important pages.
Google Search Console is a useful free tool for monitoring indexing information and identifying certain issues that affect your website.
Review your key service pages, category pages and blog posts to make sure they can be indexed where appropriate.
Look out for:
- Pages accidentally marked as noindex.
- Important pages blocked by robots.txt.
- Incorrect canonical tags.
- Pages returning errors.
- Important content that is not being discovered.
Not every page needs to be indexed. Thin, duplicate or unimportant pages may not need to appear in search results. The aim is to ensure that valuable pages are accessible and eligible for indexing.
2. Improve Your Website’s Loading Speed
Page speed is an important part of website performance and user experience.
Google uses Core Web Vitals to assess aspects of loading performance, interactivity and visual stability. These metrics include:
- Largest Contentful Paint (LCP): Measures how quickly the main content becomes visible.
- Interaction to Next Paint (INP): Measures how responsive a page is to user interactions.
- Cumulative Layout Shift (CLS): Measures unexpected movement of page elements.
Google’s recommended good thresholds are an LCP of 2.5 seconds or less, an INP of 200 milliseconds or less, and a CLS score of 0.1 or less, measured at the 75th percentile of page visits.
You can use tools such as PageSpeed Insights to identify potential performance problems and recommendations for improvement.
Common ways to improve website speed include compressing images, reducing unnecessary JavaScript, using browser caching and improving server response times.
Focus on meaningful improvements rather than chasing a perfect score. Performance needs to be assessed alongside the overall usability and functionality of your website.
3. Make Sure Your Website Works Well on Mobile
Many customers discover businesses using their smartphones, so a mobile-friendly website is essential.
Google primarily uses the mobile version of a website’s content for indexing. This means the mobile experience should contain the important information available on the desktop version.
Check that:
- Text is readable without zooming.
- Buttons and links are easy to use.
- Navigation works properly on smaller screens.
- Images fit the screen correctly.
- Forms are simple to complete.
- Important content is not hidden or missing on mobile.
Responsive web design helps your website adapt to different screen sizes, providing a more consistent experience for visitors.
4. Create a Clear Website Structure
A well-organised website makes it easier for visitors and search engines to understand how your pages relate to one another.
Your most important services should be easy to reach through your main navigation and relevant internal links.
For example, an SEO agency might organise its website around core services such as SEO, local SEO, technical SEO and website optimisation, with supporting blog articles linking to the appropriate service pages.
A clear structure helps visitors explore related information and gives search engines useful context about your content.
Avoid burying important pages several clicks deep without good reason. Use descriptive navigation labels and logical URL structures to make your website easier to understand.
5. Fix Broken Links and Redirect Problems
Broken links can frustrate visitors and make it harder to navigate your website.
They can also interrupt the flow of internal links between important pages.
A technical SEO audit should identify links that lead to missing pages, incorrect destinations or unnecessary redirect chains.
When changing or removing a URL, consider whether a redirect is appropriate. If a page has moved permanently, a relevant 301 redirect can direct visitors and search engines to its replacement.
Avoid redirecting every deleted page to the homepage. Redirect users to a genuinely relevant alternative where one exists, and return a proper 404 or 410 response when the content has been removed without a suitable replacement.
Regularly checking links and redirects can help maintain a cleaner website structure.
6. Review Duplicate Content and Canonical Tags
Duplicate or very similar pages can make it harder for search engines to determine which URL should be treated as the preferred version.
This can occur through URL parameters, product variations, website migrations or multiple versions of the same page.
Canonical tags can indicate the preferred URL when similar or duplicate pages exist. However, they are signals rather than absolute directives, and search engines may select a different canonical URL.
Review your website for unnecessary duplicate pages and ensure canonical tags are configured correctly.
The goal is not to remove every page that shares some content. It is to maintain a clear, useful structure and help search engines identify the URLs you intend to be the primary versions.
7. Use Structured Data Where Relevant
Structured data is a way of providing search engines with information about the content of a page using a standardised format.
Depending on your website, suitable schema markup may describe an organisation, a local business, an article, a product or a service.
Correctly implemented structured data can help search engines interpret specific information and may make your pages eligible for certain search enhancements.
However, adding schema does not guarantee rich results or improved rankings. Markup should accurately reflect the visible content of your website and follow Google’s guidelines.
What Is a Technical SEO Audit?
A technical SEO audit is a structured review of your website to identify issues that could affect crawling, indexing, search visibility and user experience.
It helps establish what is working, what needs attention and which improvements should be prioritised.
A typical technical SEO audit may include:
- Reviewing indexing and crawlability.
- Checking XML sitemaps and robots.txt.
- Analysing page speed and Core Web Vitals.
- Testing mobile usability.
- Identifying broken links and redirect chains.
- Reviewing canonical tags and duplicate URLs.
- Assessing internal linking and website structure.
- Checking structured data.
- Reviewing HTTPS and security issues.
The findings should be prioritised according to their likely impact and the effort required to resolve them.
For example, fixing an important service page that has accidentally been excluded from indexing may be more urgent than making a small improvement to a low-priority image.
Technical SEO should not be treated as a one-off task. Websites change over time, particularly after redesigns, platform updates, new content releases or changes to navigation.
Regular reviews can help identify problems before they have a wider effect on website performance.
How Does Technical SEO Affect Local SEO?
Technical SEO is just as relevant for businesses targeting local customers.
If you want your business to appear for searches such as “SEO agency Edinburgh” or “plumber near me”, your website needs to communicate your services clearly and provide accessible, useful information.
Technical SEO supports local SEO by helping search engines discover your service pages, understand your website structure and access relevant business information.
For local businesses, it is worth checking that:
- Your location and service pages are accessible and indexable.
- Your business name and contact information are accurate.
- Internal links connect relevant services and locations.
- Your website works properly on mobile devices.
- Your Google Business Profile is maintained separately with accurate information.
- Local content provides genuine value rather than simply repeating place names.
A well-optimised website and a complete Google Business Profile work together as part of a broader local SEO strategy. Neither guarantees a particular position in Google’s local results, but both are important areas to manage.
Can Technical SEO Help with AI Search?
As AI-powered search experiences develop, businesses are increasingly interested in how their websites can be discovered and referenced by tools such as ChatGPT and Google’s AI search features.
Technical SEO provides useful foundations for this wider objective.
Making content accessible, maintaining a clear website structure and using accurate structured data can help supported systems interpret your information. However, technical optimisation alone cannot guarantee that AI platforms will mention or recommend your business.
For a broader approach, combine technical SEO with useful content, clear explanations of your services, reliable business information and a credible online presence.
The same principle applies to traditional SEO: make your website easy to access, understand and use, while giving visitors a genuine reason to engage with your business.
How Often Should You Review Your Technical SEO?
The right frequency depends on the size and complexity of your website and how often it changes.
For a small business website, regular monitoring through Google Search Console and periodic technical reviews may be sufficient. Larger websites, ecommerce stores and sites undergoing frequent updates may require more continuous monitoring.
You should also carry out a technical review after significant changes, such as:
- Launching a redesigned website.
- Migrating to a new domain or CMS.
- Changing URL structures.
- Adding or removing large numbers of pages.
- Updating navigation or internal linking.
- Implementing major technical changes.
Checking the website before and after these changes can help identify problems early and reduce the risk of avoidable search visibility issues.
Improve Your Website’s SEO with Optimus Visibility
Technical SEO is an essential part of building a website that performs well in search engines and gives visitors a positive experience.
From indexing problems and slow page speeds to broken links and website structure, resolving technical issues can help remove barriers to search visibility and support your wider SEO strategy.
At Optimus Visibility, we take a practical approach to SEO. We look at how your website works, how customers find your services and what improvements are most relevant to your business goals.
Whether you need a technical SEO audit, help improving local search visibility or support with a wider SEO campaign, we can help you identify opportunities to strengthen your online presence.
Ready to Improve Your Website’s Technical SEO?
Don’t let avoidable website issues hold back your SEO efforts.
Get in touch with Optimus Visibility to discuss your website, identify areas for improvement and build a technical SEO strategy that supports your business growth.
