How to Run a Free SEO Audit

A free SEO audit can help you spot issues that may be making it harder for people to find your website through search engines. You do not need an expensive platform to get started: a few free tools, a clear checklist and some time can reveal useful opportunities.

An audit is not a guarantee of higher rankings. It is a way to assess your site’s technical health, content and usability, then prioritise improvements that are likely to help visitors and search engines.

What is an SEO audit?

An SEO audit is a review of the factors that affect how a website is crawled, indexed and understood by search engines. It can cover:

• Technical SEO: whether pages can be accessed, crawled and indexed.
• On-page SEO: how clearly each page communicates its topic and purpose.
• Content: whether pages are useful, accurate and relevant to the people they are intended to serve.
• Performance and mobile usability: how well the site works across devices and connection speeds.
• Links: how pages connect to one another and whether important pages are easy to reach.

Free tools to use

Start with tools that provide direct data about your website or measure specific aspects of its performance:

• Google Search Console: check indexing, search queries, clicks, impressions and reported page issues.
• Google PageSpeed Insights: review performance data and suggestions for individual URLs.
• Lighthouse: run an audit in Chrome DevTools for performance, accessibility, best practices and SEO basics.
• Bing Webmaster Tools: review how Bing discovers and reports on your site.
• Screaming Frog SEO Spider: crawl smaller sites using the free version, which has a crawl limit.

Free tools have different limits, and their recommendations may not fit every website. Use their results as clues to investigate rather than as a to-do list to follow blindly.

Step 1: Check whether your pages are indexed

Open Google Search Console and look at the indexing reports. Check whether important pages are indexed and investigate any unexpected exclusions. A page may be excluded for a valid reason, such as a duplicate URL, or because it has a technical problem.

Also review your robots.txt file and XML sitemap. The robots.txt file gives crawlers instructions about which areas they may access, while the sitemap lists URLs you want search engines to discover. Neither guarantees indexing, but both can help search engines understand your site.

Step 2: Look for crawl and technical issues

Use a crawler such as Screaming Frog to find common issues across your pages. Depending on the tool and its limits, look for:

• Broken links and pages returning errors such as 404 or 500.
• Redirect chains or redirects that lead to the wrong page.
• Pages with missing or duplicated title tags and meta descriptions.
• Pages without a clear heading structure.
• Important pages that are difficult to reach through internal links.

Check that your preferred version of each URL is consistent. For example, decide whether the site should use “www” or no “www”, and HTTP or HTTPS, then make sure redirects and canonical tags support that choice.

Step 3: Review page titles and content

Choose your most important pages and ask whether each one has a clear purpose. The page title should describe the content accurately, and the main heading should make the topic clear to visitors. Avoid stuffing titles or copy with repeated keywords.

Review the content itself. Does it answer the questions a visitor is likely to have? Is the information original, current and easy to follow? Add useful detail where it is missing, update outdated information and remove or combine pages that overlap without offering distinct value.

Meta descriptions can help explain what a page offers in search results, although search engines may choose to display different text. Write a concise, relevant description for key pages rather than relying on a generic site-wide template.

Step 4: Check internal links

Internal links help visitors move around your site and help search engines discover related pages. Make sure important pages are linked from relevant sections, such as navigation, category pages or useful articles.

Use descriptive link text so readers have a good idea of what they will find. Avoid relying on vague labels such as “click here” where a more informative phrase would work.

Step 5: Test mobile usability and performance

Visit your website on a mobile phone as well as a desktop computer. Check that text is readable, buttons are easy to tap, menus work and content does not spill beyond the screen.

Run key pages through PageSpeed Insights or Lighthouse. These tools can highlight issues such as oversized images, render-blocking resources and slow server responses. Start with improvements that affect important pages and real users. A score is useful for diagnosis, but it is not a substitute for a fast, reliable experience.

Step 6: Prioritise what to fix

A free audit can produce a long list of findings. Tackle them in a sensible order instead of trying to fix everything at once:

1. Resolve problems that stop important pages from loading or being indexed.
2. Fix broken links, incorrect redirects and serious mobile usability issues.
3. Improve the titles, headings and content of high-value pages.
4. Address performance problems that noticeably affect visitors.
5. Review lower-priority improvements and monitor the results.

Keep a record of the issue, the page affected, the action taken and the date. Search Console can help you monitor changes in impressions, clicks and indexing over time. Allow for normal fluctuations, and remember that search results can take time to reflect updates.

Common mistakes to avoid

• Chasing a perfect score: audit scores are indicators, not ranking guarantees.
• Making changes without checking the cause: a warning may be harmless or may apply only to a particular template.
• Adding keywords unnaturally: write for readers and describe the page clearly.
• Ignoring business priorities: focus first on pages that matter to your visitors and organisation.
• Expecting instant results: improvements may take time to be crawled, processed and reflected in search performance.

How often should you run an SEO audit?

For a small, stable website, a thorough review every few months may be enough, alongside regular checks in Search Console. Run an additional audit after a redesign, migration, major content update or change to your site’s structure. Larger or frequently updated websites may benefit from more regular monitoring.

Make your free SEO audit count

A useful free SEO audit does not need to be complicated. Check indexing, scan for technical errors, review important content, test the mobile experience and prioritise fixes by their likely impact. By repeating these checks and tracking what changes, you can build a clearer picture of your website’s search health without relying on paid tools alone.

 

8 Compelling Advantages of a Free SEO Audit

1. No cost to get started
2. Highlights technical issues
3. Checks page indexing
4. Finds broken links
5. Reviews titles and headings
6. Identifies content gaps
7. Offers practical improvement ideas
8. Helps prioritise SEO fixes

 

Limitations of Free SEO Audits: Incomplete Features, Misleading Results, and Technical Challenges

1. Free tools often have limited features or crawl limits.
2. Audit results may include false alarms or generic advice.
3. Fixing issues can require technical knowledge.

No cost to get started

One of the biggest advantages of a free SEO audit is that there’s no cost to get started. You can use free tools to check key areas of your website, spot potential issues and identify improvements without committing to a paid service. This makes it a practical first step for small businesses, new websites and anyone who wants to understand their SEO before investing further.

Highlights technical issues

A free SEO audit can highlight technical issues that may stop search engines from crawling or indexing your website properly. It can help uncover broken links, missing page titles, redirect errors, slow-loading pages and mobile usability problems. Finding these issues gives you a practical starting point for fixing barriers to a better experience for both visitors and search engines.

Checks page indexing

A free SEO audit helps you check whether important pages are indexed by search engines and can appear in search results. Using tools such as Google Search Console, you can spot pages that have been excluded or are not yet indexed, then investigate possible causes such as crawl errors, incorrect noindex settings or problems with your sitemap.

Finds broken links

A free SEO audit can uncover broken links that lead visitors to missing pages or error messages. Finding and fixing these links helps people navigate your website more easily, improves the overall user experience and makes it simpler for search engines to discover and crawl your content.

Reviews titles and headings

A free SEO audit can review your page titles and headings to help you spot missing, duplicated or unclear elements. Since titles and headings help visitors and search engines understand what each page is about, making them accurate, descriptive and relevant can improve the browsing experience and support your SEO efforts.

Identifies content gaps

A free SEO audit can reveal content gaps by showing which questions your website does not yet answer, which topics are covered only briefly and where existing pages overlap. Reviewing search queries, competitor topics and your own site structure can help you spot useful subjects to add or expand. Filling these gaps with clear, relevant content can make your site more helpful to visitors and improve its chances of appearing for a wider range of searches.

Offers practical improvement ideas

A free SEO audit can offer practical ideas for improving your website, from fixing broken links and clarifying page titles to making content easier to navigate and improving mobile performance. These suggestions help you identify useful next steps without committing to a paid tool, so you can focus on changes that make your site more helpful for visitors and easier for search engines to understand.

Helps prioritise SEO fixes

A free SEO audit helps you prioritise SEO fixes by highlighting the issues most likely to affect your website’s visibility and visitor experience. Rather than guessing where to start, you can identify urgent problems—such as pages that cannot be indexed or broken links—and address them before moving on to less critical improvements.

Free tools often have limited features or crawl limits.

One drawback of a free SEO audit is that free tools often come with limited features or crawl limits. They may only analyse a set number of pages, provide basic reports or restrict access to more detailed data, making it harder to assess a large or complex website thoroughly. You can still gain useful insights, but may need to review pages in stages or combine several tools to build a fuller picture.

Audit results may include false alarms or generic advice.

One drawback of a free SEO audit is that its results may include false alarms or generic advice. Automated tools often flag issues without understanding your site’s purpose, structure or audience, so a warning may not require action—or may not apply at all. Treat the results as a starting point: check each recommendation in context and prioritise changes that genuinely improve your website for visitors and search engines.

Fixing issues can require technical knowledge.

One drawback of a free SEO audit is that fixing the issues it uncovers can require technical knowledge. Recommendations about redirects, indexing, page speed or structured data may be difficult to apply safely without experience, and incorrect changes could affect how your site works or appears in search results. If you are unsure, ask a qualified developer or SEO professional to review the issue before making changes.