What Is an SEO Audit and What Should It Include?

What Is an SEO Audit?

An SEO audit is a comprehensive evaluation of your website’s ability to appear in search engine results pages (SERPs). It examines everything from your site’s technical infrastructure and on-page content to its backlink profile and user experience signals. The goal is straightforward: identify what’s holding your site back and create a clear action plan to fix it.

Think of it as a health check for your website. Just as you wouldn’t ignore a recurring problem with a business’s operations, you shouldn’t ignore the technical and content issues quietly preventing your site from ranking. If you’re wondering whether your site is already suffering from hidden problems, our post on The Importance of Regular Free Website Audits for Your Business explains why consistent reviews are non-negotiable.

According to Neil Patel’s complete SEO audit guide, a well-executed audit touches on dozens of ranking factors simultaneously — making it one of the highest-leverage activities in any digital marketing strategy.

Why Does an SEO Audit Matter?

Search engines are constantly evolving. Google updates its algorithm hundreds of times per year, which means a site that ranked well twelve months ago may now be losing ground for reasons its owner doesn’t even know about. An SEO audit surfaces those reasons.

More practically, an audit gives businesses a prioritised to-do list. Rather than guessing which changes will move the needle, you work from data. That efficiency matters especially for small and medium-sized businesses where marketing budgets are finite.

At Arms Digital, we approach audits as the essential first step before any SEO or content strategy is recommended. You can browse our full range of digital services on our Services page to see how auditing fits into a broader growth plan.

What Should an SEO Audit Include?

A thorough SEO audit is not a single-page checklist — it covers several distinct areas of your website. Below is a breakdown of each section and what auditors should be examining within it.

1. Technical SEO Analysis

Technical SEO is the foundation everything else sits on. If search engine crawlers can’t access, index, and understand your pages, no amount of great content will help. A technical audit should cover:

• Crawlability and indexation: Are all important pages being crawled? Are any blocked by robots.txt or noindex tags accidentally?
• XML sitemap: Does one exist, is it accurate, and has it been submitted to Google Search Console?
• Site speed and Core Web Vitals: Google uses page experience signals, including Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS), as ranking factors.
• Mobile-friendliness: Google indexes mobile-first, so a poor mobile experience directly impacts rankings.
• HTTPS security: Sites without a valid SSL certificate are flagged as insecure and penalised in rankings.
• Canonical tags: Are duplicate pages correctly handled to avoid splitting ranking signals?
• Redirect chains and broken links: 301 redirects should be clean and direct; broken links waste crawl budget and damage user experience.
• Structured data / schema markup: Is schema correctly implemented to enable rich results in SERPs?

Our guide on How to Optimise Your Website for Free to Increase Conversions covers several of these technical quick-wins in practical, actionable detail.

2. On-Page SEO Review

Once technical health is confirmed, the audit moves to on-page factors — the elements on each individual page that signal relevance to search engines.

• Title tags: Are they unique, keyword-rich, and within the 50–60 character limit?
• Meta descriptions: Are they compelling, relevant, and within 150–160 characters?
• Heading structure (H1–H6): Is there a single, descriptive H1 per page, and are headings used logically?
• Keyword targeting: Is each page clearly targeting a primary keyword without keyword stuffing?
• Image optimisation: Do images have descriptive alt text, and are they compressed for speed?
• Internal linking: Are pages connected logically to distribute authority and guide users?
• URL structure: Are URLs short, descriptive, and free of unnecessary parameters?

The Pepperland Marketing SEO audit breakdown offers a useful perspective on how on-page and technical factors interact — well worth reading alongside this guide.

3. Content Quality Assessment

Search engines want to surface content that genuinely helps users. A content audit asks hard questions about what’s already published on your site:

• Is there thin content — pages with very little substantive information?
• Is there duplicate content, either internally (two pages targeting the same keyword) or externally (copied text from other sources)?
• Does existing content match the search intent behind the keywords it’s targeting?
• Are there content gaps — topics your competitors rank for that your site hasn’t addressed?
• Is blog and resource content regularly updated to stay accurate and relevant?

Strong content strategy goes hand in hand with SEO. If you’re building out your content plan, our Step-by-Step Social Media Marketing Plan guide and our post on How to Use Content Marketing for Backlink Building are both practical starting points.

4. Backlink Profile Analysis

Links from other websites remain one of Google’s most powerful ranking signals. An audit of your backlink profile should determine:

• Domain authority of linking sites: Are links coming from credible, relevant sources?
• Anchor text distribution: Is anchor text varied and natural, or over-optimised?
• Toxic or spammy links: Are there low-quality links that could trigger a manual penalty?
• Link growth trends: Is your backlink count growing steadily, or have there been suspicious spikes?
• Competitor comparison: How does your link profile compare to the pages outranking you?

If your link-building strategy needs work, our article on 5 Free Link Building Strategies That Actually Work is an excellent resource for getting started without a large budget.

5. Competitor and Keyword Gap Analysis

An SEO audit isn’t only about your own site — it’s about understanding the competitive landscape you’re operating in. This section of the audit identifies:

• Which competitors are outranking you for your target keywords, and why
• Keywords your competitors rank for that you are not yet targeting
• Content formats (guides, videos, tools, calculators) driving traffic for competitors
• Opportunities to capture featured snippets or ‘People Also Ask’ positions

Understanding the wider digital marketing environment is crucial here. Our post on Top 5 Digital Marketing Trends to Watch in 2024 provides useful context for how search behaviour is shifting and what that means for your keyword strategy.

6. Local SEO Review (Where Applicable)

For businesses serving a specific geographic area, the audit should also examine local SEO factors:

• Google Business Profile completeness and accuracy
• NAP (Name, Address, Phone number) consistency across directories
• Local citation quantity and quality
• Review volume and response strategy
• Location-specific on-page signals (city/region in titles, headings, and content)

Should You Do an SEO Audit Yourself or Hire a Professional?

There are free and paid tools — including Google Search Console, Screaming Frog, Ahrefs, and Semrush — that allow business owners to carry out basic audits independently. However, the volume and complexity of data these tools produce can be overwhelming without experience in interpreting it.

As the American Marketing Association notes in its SEO audit guide, the real value of an audit lies not just in identifying issues but in correctly prioritising them. Fixing a minor meta description before addressing a critical crawlability issue is a common and costly mistake.

Our in-depth post on The Benefits of Hiring a Professional for Your Website Audit walks through the scenarios where professional involvement pays for itself — and why a DIY approach sometimes costs more in the long run.

At Arms Digital, we combine technical expertise with a clear, jargon-free communication style so that you understand not just what’s wrong, but exactly what to do about it. You can learn more about our approach on our About page or explore examples of our work in our Portfolio.

How Often Should an SEO Audit Be Carried Out?

For most businesses, a comprehensive SEO audit should be performed at least once or twice per year. However, certain events should trigger an immediate audit:

• A significant and unexplained drop in organic traffic
• A Google algorithm update (major ones can significantly shift rankings)
• A website redesign or platform migration
• Launching a new product, service, or market expansion
• A manual action notice received through Google Search Console

You can also read the Thrive Agency’s detailed overview of SEO audits for further perspective on cadence and methodology.

Ready to Audit Your Website?

An SEO audit is one of the most valuable investments a business can make in its online presence. It replaces guesswork with clarity, and clarity with results. Whether you’re a growing small business or an established brand looking to regain lost rankings, the process starts with knowing exactly where you stand.

If you’re ready to find out what’s really happening with your website’s SEO, get in touch with the Arms Digital team today. We’ll help you cut through the noise and focus on the changes that actually move the needle.

For more insights on growing your business online, explore the Arms Digital Blog — packed with practical guides on SEO, content marketing, social media, and digital strategy.