An SEO audit sounds like it should require expensive tools and years of experience. Most of it doesn’t — a genuinely useful first-pass audit is a checklist you can work through yourself in an afternoon, covering the handful of issues that actually move the needle. Here’s that checklist, organised the way a proper audit should be: technical foundations first, then on-page, content, and off-page.
Technical SEO Checklist
Technical issues come first because content and links can’t perform well on a broken foundation.
- Is your site actually indexed? Search site:yourdomain.com.au in Google — if key pages are missing, there’s likely a crawlability or indexation issue worth investigating in Search Console before anything else.
- Check Search Console for coverage errors. The Pages report flags indexing errors, redirect issues, and pages Google has chosen not to index — this is the single most useful free diagnostic available.
- Test mobile usability. Google indexes mobile-first — a site with mobile display issues is being judged on that broken experience, not the desktop version.
- Check site speed and Core Web Vitals. Google’s PageSpeed Insights flags Largest Contentful Paint, Cumulative Layout Shift, and Interaction to Next Paint issues — genuinely ranking-relevant, not just a UX nicety.
- Confirm HTTPS is properly configured across the entire site, with no mixed-content warnings.
- Check for broken links and redirect chains, both internal and external — these waste crawl budget and create a poor user experience.
- Review your XML sitemap — confirm it’s submitted in Search Console, accurate, and doesn’t include noindexed or redirected URLs.
- Check robots.txt isn’t accidentally blocking pages you want indexed.
On-Page SEO Checklist
- Every page has a unique title tag and meta description. Duplicate or missing tags across multiple pages is one of the most common issues a quick audit uncovers.
- One H1 per page, genuinely descriptive of the page’s content, not stuffed with keywords.
- Logical heading structure (H1 → H2 → H3) that reflects genuine content hierarchy, not just formatting choices.
- Images have descriptive alt text, both for accessibility and because it’s a genuine (if minor) ranking signal.
- Internal linking is deliberate, not accidental — important pages should be linked to from elsewhere on the site, not orphaned.
- URLs are clean and descriptive, not auto-generated strings of numbers or parameters.
Content Audit Checklist
- Identify thin or outdated content. Pages with little substance or information that’s no longer accurate drag down overall site quality signals.
- Check for keyword cannibalisation — multiple pages competing for the same search term usually perform worse than one comprehensive page would.
- Confirm content actually matches search intent for its target keyword — a page written as a sales pitch won’t satisfy an informational query, regardless of how well-optimised it is.
- Look for content gaps against what your realistic competitors cover that you don’t.
- Check publish and update dates are genuinely accurate — backdating or leaving stale dates on refreshed content undermines trust signals.
Off-Page SEO Checklist
- Review your backlink profile (a free tool like Google Search Console’s Links report is a reasonable starting point) for any obviously spammy or low-quality links worth disavowing.
- Check your Google Business Profile is accurate and complete, if local search matters to your business.
- Look for unlinked brand mentions — coverage or mentions of your business that don’t link back, a genuine and often-missed opportunity to request a link.
- Assess your overall referring domain profile — a small number of high-quality, relevant referring domains typically outperforms a large number of low-quality ones.
How Often Should You Run an SEO Audit?
A full audit is worth running every 6–12 months, or after any major site change (redesign, platform migration, significant content overhaul). Smaller technical checks — Search Console coverage, Core Web Vitals — are worth a monthly glance, since catching an issue early is always cheaper than fixing months of accumulated damage.
When to Bring In a Professional Audit
This checklist catches the majority of common issues, but a genuinely comprehensive technical audit — crawl analysis at scale, structured data validation, in-depth backlink profile assessment — benefits from dedicated tooling and experience interpreting the results correctly. If the checklist above surfaces issues you’re not confident diagnosing or fixing yourself, that’s the point where a professional audit earns its cost.
Frequently Asked Questions
How long does an SEO audit take to complete?
A DIY pass using this checklist can realistically be done in an afternoon for a small site. A comprehensive professional audit typically takes 1–2 weeks depending on site size and complexity.
Do I need paid tools to run this checklist?
No — Google Search Console and PageSpeed Insights are free and cover most of what’s in this checklist. Paid tools add depth (particularly for backlink analysis and large-scale crawling) but aren’t required for a genuinely useful first pass.
What’s the difference between this and an ecommerce SEO audit?
This checklist covers universal SEO fundamentals relevant to any website. Our ecommerce SEO audit checklist covers platform-specific issues unique to online stores — faceted navigation, product schema, catalogue-scale duplicate content — that this general checklist doesn’t go into.
What’s the single most common issue this checklist uncovers?
Duplicate or missing title tags and meta descriptions, and thin or outdated content — both are common, both are genuinely fixable without technical expertise, and both often deliver a noticeable improvement once resolved.
Should I fix everything on this checklist myself, or hire someone?
Most items are genuinely DIY-able. The exceptions are usually technical issues requiring development access or expertise (redirect chains, structured data implementation, Core Web Vitals fixes) — those are reasonable to bring in help for once identified.
