An SEO audit is a systematic check of everything on your website that affects how search engines find, understand, and rank your pages. Think of it as a health checkup for your website — it identifies what's working, what's broken, and what's missing.
The output is a report — usually a document or PDF — that lists every issue found, ranked by severity, with specific recommendations for how to fix each one.
What does an SEO audit check?
A comprehensive SEO audit covers four main areas:
1. Technical SEO
This is the foundation. Technical SEO ensures search engines can actually access and understand your site:
- Crawlability — can Google's bot reach all your pages? Are there broken links, redirect chains, or orphan pages?
- Indexing — are your pages showing up in Google's index? Is your sitemap submitted? Are robots.txt rules accidentally blocking important pages?
- HTTPS — is your site served securely? Google penalizes non-HTTPS sites.
- Canonical tags — do duplicate URLs have canonical tags pointing to the preferred version?
- Structured data — does your site use schema.org markup to help Google understand your content?
2. Content quality
Content is what Google actually ranks. An audit checks:
- Title tags — does every page have a unique, keyword-rich title under 60 characters?
- Meta descriptions — does every page have a compelling description that makes searchers click?
- Heading structure — is there one H1 per page with a logical H2/H3 hierarchy?
- Thin content — are there pages with almost no text that Google can't rank?
- Duplicate content — are multiple pages competing for the same keywords?
- Image optimization — do images have alt text? Are they compressed?
Check your meta tags instantly with our free meta tag checker.
3. Performance (Core Web Vitals)
Google uses page speed as a ranking signal. The metrics that matter:
- LCP (Largest Contentful Paint) — how fast the main content loads. Target: under 2.5 seconds.
- CLS (Cumulative Layout Shift) — how much the page layout jumps around. Target: under 0.1.
- INP (Interaction to Next Paint) — how responsive the page is to clicks/taps. Target: under 200ms.
Test your speed with our free page speed test.
4. Keyword opportunities
Beyond fixing problems, an audit should also identify opportunities — keywords your site could rank for but doesn't yet. This typically includes:
- Keywords you already rank for (positions 1-10) — your existing wins
- Low-hanging fruit (positions 11-30) — keywords close to page 1 that could be pushed up with targeted optimization
- Domain metrics — your site's overall authority, backlink profile, and organic traffic estimate
Who needs an SEO audit?
Every website that depends on search traffic for business. Specifically:
- New websites that haven't been optimized yet — the audit is your roadmap
- Established sites with declining traffic — the audit identifies what broke
- Sites that have never been audited — there are almost certainly quick wins hiding in the technical SEO
- Before a redesign — audit first so the new site doesn't lose existing rankings
- Freelance marketers pitching prospects — the audit is the deliverable that closes the deal
How often should you audit?
At least once a year for sites that don't change much. Quarterly for sites that publish new content regularly or run an active blog. After every major change (redesign, domain migration, CMS switch, significant content additions).
How long does an SEO audit take?
Manually: 4-8 hours for an experienced SEO professional checking a small site (under 50 pages). For larger sites, multiply accordingly.
With an automated tool: 2-5 minutes. That's what AuditCrawl does — crawls up to 50 pages, checks everything listed above, and generates a report with AI-powered fix recommendations in under 5 minutes.
What does a good SEO audit report look like?
A useful audit report should include:
- An overall grade or score — one number the client can understand immediately
- Category breakdowns — separate scores for technical, content, performance, and mobile
- A prioritized issue list — critical issues first, minor issues last, with specific affected pages
- Actionable recommendations — not just "missing meta description" but "here's what the meta description should say"
- Keyword data — what the site ranks for and where the opportunities are
See what this looks like in practice: view a sample AuditCrawl report.
Get your first report
Ready to find out what's holding your site back? Run a full AuditCrawl report — enter a URL, get a comprehensive content strategy with AI-powered keyword research and content opportunities. $7.99, no subscription, white-label PDF included.