SEO Audit vs DIY: Should You Audit Your Own Site?
You can audit your own site with free tools and a checklist. What it takes, how long it takes, and where a do-it-yourself audit tends to break down.
- Updated
- 6 min read
By Szymon Kokot Published Updated 6 min read
SEO Audit vs SEO Retainer: Which Should You Start With?
An SEO audit is a one-off review that tells you what is holding a site back and what to fix first. An SEO retainer is an ongoing monthly arrangement in which an agency, consultant or freelancer does SEO work for you. One is a diagnosis; the other is ongoing treatment. They aren't really competitors, but businesses often have to decide which to pay for first, and the order matters. This article compares the two on cost, output and commitment, and explains when each one makes sense.
In short: An SEO audit is a one-off, fixed-price review that ends in a report with the fixes in order. An SEO retainer is a monthly fee for ongoing SEO work, usually with a notice period. Start with an audit when you don't know what is wrong or haven't had a review in a year. Choose a retainer when you already know what needs doing and lack the time or skills to do it.
What is an SEO audit?
An SEO audit is a structured review of a website's search visibility that produces a written list of problems and fixes, ordered by priority. It covers technical health, on-page SEO, keywords, backlinks, competitors and, increasingly, AI search visibility. The output is a document, and the engagement ends when it is delivered.
An audit is priced once, usually as a fixed fee. Illucrum's audits have one published price each and end with the report: there is no follow-up sale and no ongoing fee. The prices are on the pricing page.
What is an SEO retainer?
An SEO retainer is a monthly agreement under which a provider does SEO work on a continuing basis: technical fixes, content, link building, reporting and meetings. Retainers are the most common way SEO is sold. In an Ahrefs survey of 439 SEO providers, 78.2% said they charge a monthly retainer.
Retainer prices vary widely by provider type. In the same survey, the most common range was $501 to $1,000 a month, chosen by 20.4% of respondents, while the average was $3,209 a month for agencies, $3,250 for consultants and $1,348.63 for freelancers. The survey was published in December 2023 and updated in August 2024, so treat the figures as a guide rather than current prices.
How does an SEO audit compare with a retainer?
An SEO audit and an SEO retainer differ in what you pay for: a diagnosis once, or work every month.
| SEO audit | SEO retainer | |
|---|---|---|
| What you get | A written report with every finding and a prioritized fix list | Ongoing work: fixes, content, links, reporting |
| Pricing | One fixed fee | A monthly fee |
| Typical yearly cost | The one fee, plus a repeat audit if you want one next year | 12 monthly fees; $12,000 a year at $1,000 a month |
| Commitment | None beyond the audit | Monthly, often with a minimum term and a notice period |
| Time to first output | Days | Often weeks, since many retainers start with their own audit |
| Who does the fixes | You, your developer or anyone you choose | The retainer provider |
| Best for | Knowing what is wrong and in what order | Doing the work continuously once the direction is clear |
When is an SEO audit the right choice?
An SEO audit is the right choice when the question is "what is wrong?" rather than "who will do the work?". An audit is usually the better first step when:
- You haven't had a structured SEO review in the last 12 months, or ever.
- Traffic has stalled or dropped and you don't know why.
- You have in-house people or a developer who can make the fixes once they know what they are. If you'd rather run the review yourself, the SEO audit vs DIY comparison covers what that takes.
- You are about to hire an agency and want an independent view of the site first, so you can judge their proposal.
- You are planning a redesign or migration and want a baseline before anything changes.
- The budget is limited and you need to spend it on the few fixes that matter most.
An audit also protects you in the retainer decision. Many retainers begin with the provider auditing the site, which means paying monthly fees while the diagnosis is still being made. Arriving with a report shortens that phase, and makes it easier to see whether the proposed work matches what the site needs.
When is an SEO retainer the right choice?
An SEO retainer is the right choice when the direction is clear and the constraint is capacity. A retainer usually makes sense when:
- You already have an audit or a clear plan, and the bottleneck is doing the work.
- SEO needs continuous effort, such as regular content production and outreach in a competitive market.
- The site is large or complex, and changes constantly enough to need ongoing technical oversight.
- Nobody in the business has the time or skills to act on findings, and hiring someone in-house isn't justified.
A retainer is worth the most when both sides know what the months are for. Before signing one, ask what will be done in the first three months, how progress will be measured, what the notice period is, and who owns the content and accounts if the agreement ends.
Can you combine an audit and a retainer?
You can combine an SEO audit and a retainer, and the usual order is audit first. The audit sets the priorities; you then decide whether to act on them yourself, through your developer, through a one-off project or through a retainer. Some businesses repeat an independent audit once a year while a retainer runs, as a check on whether the work is moving the site in the right direction.
Frequently asked questions
Is an SEO audit cheaper than an SEO retainer?
An SEO audit usually costs less than a year of retainer fees, because it is paid once. A retainer at the most common range in Ahrefs' provider survey, $501 to $1,000 a month, adds up to roughly $6,000 to $12,000 a year. The comparison isn't like for like: the audit tells you what to do, the retainer pays someone to do it.
Do I need a retainer after an SEO audit?
No. A good audit report is written so the fixes can be made by you, your developer or anyone you choose. Whether you then need ongoing help depends on how many findings there are, how technical they are and how much time you have. Many small sites can work through a prioritized fix list without a retainer.
How long does an SEO retainer last?
SEO retainers usually run month to month, often after an initial minimum term and with a notice period to end them. Terms vary widely by provider, so before you sign, check the minimum term, the notice period and what happens to content, reports and accounts when the agreement ends.
Does Illucrum offer SEO retainers?
No. Illucrum sells fixed-price SEO audits only, and the report is the end of the transaction. It is written so you can act on it yourself, hand it to your developer, or hire anyone you like, including a provider on a retainer.
An audit answers "what should we do?"; a retainer answers "who will do it every month?". If you can't yet answer the first question, paying for the second is premature. If you'd like the diagnosis first, the audits page compares the six Illucrum audits and the pricing page lists what each one costs.