SEO audit cost depends on which of four audits you are buying

Two SEO audit prices on one page

One of the first pages Google shows for “seo audit cost” belongs to WebFX, a large US agency. Near the top, the page reports a survey of 250 US businesses: 43% of them pay $101 to $750 for an SEO audit. Further down, the same page lists the agency’s own audit service. It starts at $8,600.

Neither number is a mistake. The businesses in the survey and the agency are describing different purchases that happen to share a name, and the page never says so. That is the whole difficulty with SEO audit cost: the figure means nothing until you know which audit it is attached to.

We wanted to know whether that page is unusual, so on 10 October 2026 we took the ten results Google returned in the United States for the search and read nine of them. The tenth, a forum thread, could not be opened. All nine publish a price or a range, and between them the figures run from that $101 to $750 up to $15,000 to $50,000 for an enterprise site. Five of the nine name no source for their numbers. Seven have something to sell: six are agencies that sell SEO services and one sells audit software. One of the seven labels that interest as a disclosure.

We belong in the same group. We sell SEO services, so read this with that in mind. We publish no prices of our own, and every figure below is someone else’s data with its source named.

What follows sorts the market into the four audits we see sold, from the cheapest up, with what each one costs by published data and when it is all you need.

The audit that costs nothing

The first audit is a machine’s. A crawler visits your pages and returns a score out of 100 and a list of warnings, usually within minutes and often as a free PDF with an agency’s logo on the cover.

The best versions of it belong to Google and are free. Search Console shows which of your pages Google has indexed, which it has not and why, and the searches that bring people to you. PageSpeed Insights reports how fast a page loads, with data from real visitors where Google has it. Any paid audit that does not begin from your Search Console data is working from guesses.

This is also the honest answer to a question Google shows beside this search: can ChatGPT do an SEO audit? It can do this kind. Give an AI assistant a page and it will comment sensibly on the title, the headings and whether the page answers its question. Give it an export from a crawler and it will sort the findings faster than a person. It has not crawled your whole site, though, and it cannot see your Search Console or your enquiry records unless you hand them over.

The machine’s limit is the same in every form. It reports what is visible and cannot tell you what matters, because it does not know what you sell, to whom, or which pages earn money. A list of 400 warnings arrives, nobody knows which twelve to fix, and six months later it is still in a folder.

It is enough for a first look, or as a check after a release. It is not enough if you are trying to find out why enquiries have stopped.

The audit that costs hundreds

The second audit adds a person, for hours or a few days. A specialist runs the crawl, opens Search Console, and writes up the technical problems: pages Google cannot reach or has dropped, redirect chains, duplicate pages, slow templates, missing structured data. Each finding comes with its fix.

In our judgement this is where the WebFX survey’s $101 to $750 mostly sits, together with the automated reports sold for a small fee. The survey does not say what its 250 businesses bought, and it gives no date. The sellers’ side agrees on the scale: in Ahrefs’ survey of 439 SEO providers, freelancers most often charged $101 to $250 for a one-off project.

A technical audit is the right purchase around a change. Before a migration or a redesign it tells you what to protect, and after one it tells you what broke. Our website redesign checklist covers that case, and Google’s guidance on hiring an SEO calls a redesign a great time to bring one in, the earlier the better.

What it does not do is look beyond the plumbing. A site can pass a technical audit and still have no page for the question its buyers ask most.

The audit that costs thousands

The third audit is a week or more of an experienced person, and it is what most agency proposals mean by the word.

Nobody publishes a price for it with a method you can check, but two sources let you reason about one. Ahrefs’ survey has no line for audits; an audit is a one-off project, and the most common per-project fee was $2,501 to $5,000, charged by 21.2% of respondents and the most common band among agencies. Clutch’s SEO pricing guide, built from the agencies and client reviews on its platform, says most SEO agencies it lists charge $100 to $149 an hour, and gives the same band for agencies in the United States.

Put those together. If one person spends a working week on your site, 40 hours, Clutch’s most common rate makes that $4,000 to $5,960. That is an illustration, not a quote, and not our price. It does sit beside the band Ahrefs’ agencies most often charge. A “full audit” priced far below it is much less than a week of a person, or not a person at all.

What should the week cover? In our view, five things, in this order.

Measurement first. Every later finding has to be ranked by what it is worth, and if the analytics cannot show which pages lead to an enquiry, the audit can only rank problems by how loudly a tool reports them. Three of the nine pages we read name analytics as part of an audit at all.

Then crawling and indexing, the technical audit described above.

Then the searches and the pages. Someone reads the searches your buyers run, checks which page is meant to answer each one, and says plainly where two pages compete or no page exists. This is where a person earns the fee.

Then links and mentions: who links to you and what other sites say about you. That now includes the sources AI assistants read, though an “AI visibility audit” sold as a separate product deserves the questions in our guide to choosing a GEO agency.

Last, the priorities. Each finding carries what it is likely to change, who has to do the work and roughly how long it takes. This page is the product. The rest is evidence for it.

The audit that does not end

The fourth audit is sold as the first month of something longer. The findings arrive with a team attached to fix them, and the price is monthly.

Clutch puts the typical SEO agency fee at $2,000 to $20,000 a month, with an average of $3,199.19 across the projects reviewed on its platform. In Ahrefs’ survey the most common retainer was far lower, $501 to $1,000 a month. The two measure different sellers: Clutch lists agencies with reviewed projects, while Ahrefs’ respondents include freelancers and consultants as well as agencies.

There is nothing wrong with this arrangement when nobody on your side can make the changes. The fixes are the larger cost in any case, and they are rarely SEO work. A redirect map and a template fix need a developer. Slow pages need whoever owns the hosting and the front end. Thin or competing pages need a writer who knows the product.

It is also the cost the ranking pages are quietest about. None of the nine gives a separate figure for fixing what an audit finds; two fold the fixes into a bundled or monthly price.

Two things are worth settling before you agree to it. Ask whether the audit exists as a document you keep if you stop after month one, because an audit you cannot take elsewhere is a sales process. And check that someone can change the site at all. If the templates are locked, the developer has gone, or every edit waits months in a queue, the findings will be out of date before the first one is fixed.

Turn to the last page first

Whichever of the four you are offered, Google’s own guidance gives the test. An audit, it says, should be about giving you “realistic estimates of improvement, and an estimate of the work involved”. The line is in Do you need an SEO?, last updated in June 2026.

Read that as a description of the last page. A list of problems does not meet it. An audit that meets it ends by saying what is likely to improve and how much work that takes, in terms your developer and your finance lead can both use. So before you buy, ask to see the last page of an audit the seller has already delivered, with the client’s name removed. You will know within a minute which of the four products they make.

Three more questions are worth the time. Who does the work, by name, and for how many hours: five of the nine pages we read give a duration, from a few days to 30 to 45 days, and a 45 day audit can contain one week of a person. Is the fee credited against a retainer or separate from it. And what access is needed: Google’s advice is read access to Search Console and no more until you have decided to work together.

One answer should end the conversation. Google states that nobody can guarantee a first-place ranking, and an audit that promises one has told you what the rest of it is worth.

If you are not sure you need one

Plenty of sites do not need a paid audit. A small local business can often do much of the work itself, and Google’s guidance says as much. A site rebuilt last year with an SEO involved from the start has, in effect, just had one. A company about to redesign should spend the money inside the redesign.

The case for the third audit is narrower and clearer: organic enquiries have stalled or fallen, the site has grown for years without anyone owning its structure, and nobody inside can say where the problem is. If paid search is part of the same picture, the account audit there comes before any change too.

If you already hold an audit that left you with a list and no plan, or two quotes with a zero between them, send them to us. We reply within 12 hours and sign an NDA before the first call. On that 30 minute call the people who would do the work will tell you which of the four each one is and what it leaves out, whether or not you hire us.