SEO Audit: What It Examines and What You Should Get

An SEO audit is a structured review of why a website does or doesn’t appear in search results. A proper SEO audit examines six areas: indexing, on-page optimisation, content quality, links, local signals, and AI visibility. It delivers three things at the end: a written document explaining what was found and why each finding matters commercially, a prioritised action list ranked by business impact and effort to fix, and a walkthrough session where someone talks a non-technical owner through the conclusions. An automated file with no ordering and no explanation is a report, not an SEO audit.xxx

What is an SEO audit, and how do you tell a good one from an expensive one? Buying an SEO audit is awkward because you can’t judge the product until months after you’ve paid for it. The document arrives, it looks thorough, and there’s no obvious way to tell whether it reflects a week of skilled diagnostic work or a tool export with a cover page attached. That gap between what you’re paying for and what you can verify is where most of the disappointment in this market comes from.

ProfileTree is a Belfast-based web design and digital marketing agency working with SMEs across Northern Ireland, Ireland, and the UK since 2011. This page sets out what an SEO audit actually examines, what should land on your desk when it’s finished, and how to read the output without a technical background. It also covers the warning signs in cheap audits and gives you ten checks you can run on your own site this afternoon.

What an SEO Audit Examines: The Six Areas

A useful SEO audit works through six distinct areas in a fixed order, because the findings in one affect what matters in the next. Fixing the wording on a page Google can’t reach is wasted effort. Each area below includes a plain explanation and one example of what a real finding looks like when it appears in a document. If your site sits in Belfast or the wider region, ProfileTree’s Belfast SEO services run this same sequence for local businesses.

Indexing and Crawlability

This asks a single question: can search engines reach your pages, and have they decided to store them? Every other finding depends on the answer. Pages can be blocked by a robots.txt rule left over from a rebuild, hidden by a noindex tag nobody removed, or pointed elsewhere by a canonical tag applied to the wrong template. Google may also crawl a page and choose not to index it, which is a quality signal rather than a technical fault.

A finding in this area reads something like: “Fourteen service pages are listed under ‘Crawled, currently not indexed’ in Search Console. All fourteen share the same 180-word template with only the town name changed. These pages need distinct content or should be consolidated into three regional pages.”

On-Page Optimisation

On-page work covers the signals inside each page: the title tag, the meta description, the heading structure, the URL, and the image alt text. None of it is complicated, and all of it is routinely wrong on sites that have grown organically over several years. Title tags get duplicated across templates. Headings skip levels. Meta descriptions get truncated or auto-generated into nonsense.

A finding here reads: “The ‘Commercial Roofing’ page ranks in position 11 for its main term with 2,400 monthly impressions and a 0.4% click rate. The title tag is 78 characters and gets cut off before the service is named. Rewriting it to front-load the service and location should lift the click rate without any ranking change.”

Content Quality and Search Intent

This area asks whether your pages answer the question the searcher actually typed. A page can be technically perfect and still fail because it’s a brochure where the searcher wanted a comparison, or a definition where they wanted a price. An SEO audit at this layer compares what your pages say against what the search results for that term reward, and flags thin pages that restate common knowledge without adding a specific figure, example, or position.

A finding here reads: “Six blog posts target variations of the same term. None ranks above position 30. The strongest of the six should absorb the unique material from the other five, which should then redirect to it.”

Links, Internal and External

Two things get reviewed. Internal links are the ones you control, and they decide which of your own pages get treated as important. Pages with no internal links pointing at them are effectively invisible. External links are the ones other sites give you, and the review looks at whether the profile is natural or carries the residue of a cheap link-building campaign from years ago.

A finding here reads: “Your highest-margin service page receives two internal links, both from the footer. Three low-value blog posts receive over forty each. Redirecting internal links from those posts to the service page redistributes authority you’ve already earned.”

Local Signals

For any business serving a defined area, this area often produces the fastest commercial return. It covers your Google Business Profile categories, the consistency of your name, address, and phone number across directories, whether you have location-specific pages worth ranking, and how you appear in the map pack for the towns you serve. A Derry plumber and a Dublin accountant both live or die on this layer well before anything technical matters.

A finding here reads: “Your Google Business Profile lists a secondary category that doesn’t match your main service, and your address appears in three formats across the eleven directories checked. Correcting both is a half-day task with direct map pack impact.”

AI Visibility

This is the newest area and the one most audits still skip. Assistants such as ChatGPT, Gemini, Perplexity, and Google’s AI Overviews answer questions by pulling and citing passages. Pages that get cited share recognisable traits: the question gets answered in the opening forty to sixty words of a section, paragraphs stand alone rather than depending on the one before, entities are named explicitly, and tables and lists carry the comparisons. An SEO audit that ignores this area misses a growing share of the demand for your services.

A finding here reads: “None of your five service pages answers its own headline question within the first paragraph. Restructuring each to lead with a direct answer makes the passage extractable without changing what the page says.”

What You Should Receive When an SEO Audit Is Delivered

An SEO audit is a purchase, so it should have defined deliverables in the same way a website build does. Three items make up a complete handover, and a proposal that only mentions the first is worth questioning before you sign.

The Document Itself

The written document explains each finding, why it matters commercially, and what evidence supports it. Good ones tie findings to named URLs rather than describing problems in the abstract, and they distinguish between what is measured, what is inferred, and what is opinion. Length is not a quality signal. A focused forty-page document that covers your twelve commercial pages properly beats a 300-page export that treats every URL on the site as equally important.

The Prioritised Action List

This is the part that decides whether the SEO audit gets used or filed. Every finding should be scored on two axes: likely commercial impact and effort to fix. That scoring turns a list of problems into a sequence of work. It should also name who does each item, because “fix internal linking” means something different to a marketing manager than it does to a developer, and an unassigned task is a task nobody does.

The Walkthrough Call

Somebody should sit down with you and talk through the findings. This is where you get to ask what a finding means in revenue terms, push back on anything that sounds like padding, and agree what happens in the first thirty days. Providers who deliver the document by email and disappear are selling you a file, not a diagnosis. The walkthrough is also where an experienced auditor tells you which two or three items actually matter, which no document does as honestly as a conversation.

Reading an SEO Audit Without a Technical Background

You don’t need to understand the technical detail to judge whether an SEO audit is any good. Four tests will tell you most of what you need to know, and none of them requires you to know what a canonical tag is.

First, check whether findings are attached to specific pages on your site. Generic statements such as “improve page speed” or “add more content” could apply to any website in the country and tell you nothing. Real findings name URLs, quote numbers from your own Search Console, and state what changes if you act.

Second, check whether the list is ordered and whether the ordering has a stated logic. If everything is marked high priority, no prioritisation has happened. “Most audits fail because everything on the list is marked urgent. When everything is urgent, nothing gets done. The job is to find the two or three changes that will move the business this quarter, and to be honest about the rest,” says Ciaran Connolly, founder of ProfileTree.

Third, check that every technical term is explained the first time it appears. Jargon in an SEO audit is a service failure, not a sign of depth. An auditor who can’t explain Interaction to Next Paint in one sentence about how quickly your page responds when someone taps a button probably doesn’t understand it well themselves.

Fourth, ask three questions of any finding you don’t follow: how do you know this, what happens commercially if we ignore it, and who implements it. A capable auditor answers all three without hesitation. Google’s own guidance on hiring an SEO makes the same point, advising site owners to ask for documented backing for any recommendation. If you want the technical detail behind these checks, ProfileTree’s complete website audit guide covers the wider review that an SEO audit sits inside.

Red Flags in a Cheap SEO Audit

Low-cost audits are not automatically bad, but a handful of signals reliably separate a diagnostic exercise from a lead-generation tactic dressed up as one. Watch for these before money changes hands.

• A fixed price quoted without seeing the site. Scope varies enormously between a twenty-page brochure site and a 500-product WooCommerce store. A genuine quote reflects that, which means a short conversation has to happen first.
• A 48-hour automated PDF. Turnaround that fast means no human reviewed the output. These files are generated from a crawl, use a “site score” out of 100 that maps to nothing Google measures, and list several hundred items in the order the tool found them.
• Findings with no priority order. A list of 300 issues transfers the hardest part of the job, deciding what matters, back to you. That decision is most of what you’re paying for.
• Jargon with no translation. Technical vocabulary used without explanation often conceals a shallow review. It also makes the document impossible to take to a board or a finance director.
• Guaranteed rankings or promises about a “Google score”. Nobody controls the algorithm, and Google publishes no site-wide quality score. Any provider claiming otherwise has told you something useful about how they operate.
• No named person doing the work. Ask who runs the SEO audit and what their experience is. Providers who won’t say usually have an answer you wouldn’t like.

SEO audit cost follows naturally from all of this. There is no standard rate, because SEO audit cost tracks site size, competition, and how much of the work is genuinely manual. ProfileTree’s SEO pricing guide for Northern Ireland sets out current tiers for both one-off audit work and ongoing retainers.

Ten Checks You Can Run on Your Own Site Today

Treat this as a starter SEO audit checklist rather than a substitute for the real thing. Together these ten checks will tell you within an hour whether you have a problem worth paying someone to investigate. Everything here uses free tools and needs no technical skill.

1. Search site:yourdomain.co.uk in Google and compare the result count to how many pages you believe you have. A large gap in either direction is worth explaining.
2. Open the Pages report in Google Search Console and read the reasons listed under “Not indexed”. Anything unexpected there is a real finding.
3. Search your main service term in a private browsing window, without your location cached, and note where you appear.
4. Read your homepage title tag as it shows in the search result. Does it name what you sell and where you sell it, inside 60 characters?
5. Run your most commercially important page through Google PageSpeed Insights and read the field data rather than the lab score.
6. Confirm every page loads over HTTPS with no browser security warning.
7. Open your site on a phone and try to complete an enquiry. Time it.
8. Check your Google Business Profile: primary category, opening hours, and whether the address matches your website footer exactly.
9. Count how many internal links point to your highest-margin service page. If the answer is under five, that’s a finding.
10. Ask an AI assistant a question your business exists to answer, and see who gets cited.

Work through those ten and you’ll have a rough shape of your own position before anyone quotes you. A full SEO audit checklist runs considerably deeper than this, adding a crawl of every URL, a review of redirect chains, and a look at how the site renders for search engines rather than browsers. For the complete SEO audit checklist and the order to work through it in, see ProfileTree’s step-by-step DIY guide. [PLACEHOLDER: task 24 URL required]

Deciding Whether to Commission an SEO Audit

An SEO audit earns its cost when the findings translate into scheduled work, and not before. If nobody in the business has time to act on a prioritised list, the document becomes an expensive way of confirming what you suspected. The honest question to ask before commissioning one isn’t whether your site has problems, because every site does. It’s whether you have someone who will do the work in the next quarter.

Three situations move an SEO audit from optional to worthwhile: a traffic drop you can’t explain, a rebuild or migration that has just happened or is about to, and a provider relationship you’re considering ending, where an independent second opinion gives you something to judge the incumbent against. Outside those, an annual review with lighter quarterly checks is usually proportionate for an SME.

If the answer is that you want the diagnosis and the implementation from the same team, ProfileTree’s search engine optimisation services fold audit findings directly into ongoing work, so nothing sits in a document unused. Either way, ask for the prioritised list and the walkthrough before you agree to anything. Those two deliverables are what separate an SEO audit from a file.

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