How to do an SEO audit, step by step

An audit sounds like a big scary project, and plenty of people avoid it for exactly that reason. But skipping it is how sites end up pouring money into content that will never rank, because the foundation underneath is broken. Do the audit first. It is the cheapest, highest-return work in SEO.

An SEO audit is a systematic check of what is stopping your site from ranking. Work through it in order: indexing first, then technical health, then on-page factors, then content quality, then links. Fixing what you find in that sequence unlocks rankings that were already earned but trapped.

Start with indexing

Indexing comes first because a page Google has not indexed cannot rank, full stop. Open Google Search Console, go to the Pages report, and look at how many of your pages are indexed versus excluded. If important pages are excluded, that is your top priority, ahead of everything else on this list.

Common causes are stray noindex tags, robots.txt blocks, and canonical tags pointing the wrong way. Our guide on fixing pages not indexed walks through each. Get this right before touching anything else, because it gates the entire audit.

Check technical health next

Technical health decides whether Google can crawl and understand your site efficiently. Run through the technical SEO checklist and flag broken links, redirect chains, duplicate pages, and slow-loading templates. These issues waste crawl budget and quietly cap how much of your site can rank.

Pay special attention to page speed and mobile rendering. Google ranks on the mobile version, so test your key pages on an actual phone. The Core Web Vitals guide covers the specific speed metrics Google measures and how to improve them.

Audit your on-page factors

On-page factors are the elements on each page that tell Google what it is about. Check that every important page has a unique, descriptive title tag with the keyword near the front, a clear H1, and a meta description that earns the click. Duplicate or missing titles are one of the most common findings, and one of the fastest to fix.

Also check your heading structure and internal links. Each page should link to related pages with descriptive anchor text, spreading authority and helping Google map your site. This is core on-page SEO, and small fixes here often produce quick wins.

Review content quality

Content quality is where you judge whether your pages actually answer the searches they target. For your top pages, ask a blunt question: does this fully answer what the searcher wanted, better than the pages currently ranking above it? If not, that page needs depth, not just a keyword sprinkled in.

Look for thin pages, outdated pages, and pages that miss the search intent entirely. Many of these tie back to the common SEO mistakes that quietly hold sites back. Flag the pages worth improving and the ones worth merging or removing.

Find keyword cannibalization

Cannibalization happens when multiple pages target the same keyword and compete with each other. Search your own site for a target keyword using site colon in Google, and if several pages come up for the same term, you likely have overlap. The fix is to consolidate them into one strong page or clearly separate their targets.

This single fix can lift a stuck keyword within weeks, because you are concentrating signals that were previously split. It is one of the most satisfying findings in any audit.

Assess your backlinks

Backlinks are still a major ranking factor, so your audit should include a look at your link profile. Check which pages have earned links and which of your important pages have none. Pages with no links and no internal support struggle to rank, and knowing where the gaps are tells you where to focus outreach.

You do not need to obsess over exact numbers. What matters is the shape: are your money pages supported by links, or are they orphaned? If the latter, that is a clear action item.

Turn findings into a plan

An audit is only useful if it produces a prioritized list. Rank your findings by impact and effort. Indexing and technical blocks come first because they trap earned traffic. Then on-page fixes for quick wins. Then content improvements and link building, which pay off over longer timelines.

Do not try to fix everything at once. A focused list of the top ten issues, tackled in order, beats a hundred-item spreadsheet nobody touches. Most of these findings live inside Google Search Console, so learn to read that report well.

Run it regularly

An audit is not a one-time event. Problems creep back in as you publish, redesign, and migrate. Run a full audit quarterly and a quick indexing check monthly, and you will catch issues while they are small instead of after they have cost you months of traffic.

If you would rather start with an automated pass, run a free SEO audit to surface the technical and indexing issues in minutes, then work through the content and link sections by hand. You can also pull together a stack of free SEO tools to check speed, links, and keywords as you go.