Knowing how to do an SEO audit properly means working through technical, on-page, and content layers in order, then prioritising fixes by realistic impact rather than tackling issues in whatever order a tool happens to list them.
Step 1: Crawl the Site
Run a full site crawl to surface broken links, redirect chains, duplicate title tags, missing meta descriptions, and orphan pages. This is the raw data layer every subsequent step draws from.
Step 2: Check Indexing Status
Compare what is actually indexed in Google Search Console against what should be indexed. Pages accidentally noindexed, blocked by robots.txt, or stuck in “discovered, not indexed” status are often the highest-impact fixes in an audit, since they represent content earning zero search visibility.
Step 3: Review Core Web Vitals and Mobile Experience
Check page speed and Core Web Vitals scores, particularly on mobile, since mobile-first indexing means Google primarily evaluates the mobile version of your pages.
Step 4: Audit Content Against Search Intent
For your priority pages, check whether the content actually matches what the top-ranking competitors are providing for the same keyword. Thin, outdated, or intent-mismatched content is a common reason a technically sound page still underperforms.
Step 5: Prioritise by Impact, Not Volume
A long audit report with two hundred flagged issues is not useful without prioritisation. Rank fixes by estimated traffic or ranking impact and implementation effort, and start with high-impact, low-effort items first.
Frequently asked questions
How long does a proper SEO audit take?
For a small to mid-size site, one to two weeks for a thorough audit; longer for enterprise sites with tens of thousands of pages.
How often should I audit my site?
A full audit annually at minimum, with lighter technical checks quarterly and after any major site change.
Can I do an SEO audit myself without tools?
Basic checks are possible manually, but a proper crawl-based audit needs a dedicated crawler tool to surface issues at scale that manual review would miss.
Serpwize starts every engagement with a full technical, on-page, and content audit. See our SEO outsourcing service.