SEO audit vs website audit: the difference

What an SEO audit looks at

Google describes SEO as helping search engines understand your content and helping users find your site. An SEO audit checks what contributes to that, and it usually covers three areas.

• Technical: are pages crawled and indexed, titles and descriptions in place, canonical URLs correct, redirects clean, the sitemap up to date?
• Content: which searches your pages target, which ones they miss, and what the sites ranking above you publish.
• Links: which sites link to yours, and with what authority.

An SEO specialist often adds your traffic and ranking data, with access to your analytics tools. It is work aimed at a single question: being found.

What a website audit adds

Our audit covers 9 pillars: security and encryption, performance, search, accessibility, compliance and privacy, domain and network, independence and resilience, content and trust, experience and reliability. An SEO audit covers only one of them, search. Each of the others answers a question an SEO audit does not ask.

• Security and encryption: are exchanges with your visitors properly protected?
• Performance: does the site stay fast enough, on phones as on desktops?
• Accessibility: can people with different accessibility needs still use your pages?
• Compliance and privacy: are legal notices, consent and required information present and correctly set up?
• Domain and network: are your domain name and email properly protected?
• Independence and resilience: which providers does your site depend on, and what happens if one of them stops?
• Content and trust: is the content clear, credible and well structured?
• Experience and reliability: do the key pages and user journeys actually work?

On search itself, the audit checks what search engines read from your pages: titles, descriptions, canonical URLs, structured data, language versions, dead links and redirects. It does no keyword research, no backlink analysis and no rank tracking. The guide how to audit a website walks through the approach, pillar by pillar.

When an SEO audit is enough

When your question is about visibility, and nothing else. Search traffic is dropping, a redesign will change your URLs, you want to know what content to write: that is the ground of an SEO audit, and of an SEO specialist who follows the site over time. A redesign that changes URLs is prepared on that side first.

It is also enough when the rest has already been checked elsewhere: security by your host or your team, legal requirements by your counsel. It stops being enough when you want the state of the whole site, to decide on a redesign, take over a site, or check what a contractor delivered.

What good SEO does not tell you

The report on an online store that we publish shows one case. At the time of the audit, its search score is one of the two best in the report, and its compliance score the lowest. Google's tag manager loads before the visitor makes any choice, and no accessibility statement is published although the store is required to have one. An SEO audit of this store would have come back good, and it would have been right about its own scope.

What we find on the sites we audit

These percentages cover about 20 to 30 websites we audited between August 14, 2026 and September 24, 2026. Each one counts only the sites where the point could be checked. Many were audited because a defect showed up quickly, so these figures describe our audits, not websites in general.

These points fall outside SEO, and an SEO audit has no reason to look for them.

The guides to secure cookies and to domain name expiry explain what these findings mean for a site. On an online store, the information owed to customers comes on top: the guide to ecommerce website audits covers it.

What you receive, and at what price

The report records facts, measurements and observable evidence; it is neither a compliance certification, nor legal advice, nor a penetration test. Each pillar gets a score out of one hundred on a documented, stable scale, applied to the facts recorded during the audit. You receive three documents: the audit report, the page-by-page analysis and the methodology note.

Every plan applies the same method across all 9 pillars. Only the number of pages analyzed and the price change: from €200 excl. VAT for 8 pages to €1,190 excl. VAT for 120 pages, with the whole site quoted on request. Payment collected on delivery. The details are on our pricing page, and the guide to website audit cost explains what moves a quote.

What this check doesn't tell you

By Quentin Mathis, Z29K · updated September 28, 2026