How to Do a Technical SEO Audit (A Step-by-Step Walkthrough)
A technical SEO audit answers one question: can search engines actually find, read, index and trust your site? Content and links do not matter if the answer is no. The audit is not glamorous, but it is where the fastest wins hide, because a single misconfigured tag can hide an entire section from Google. Here is how to run one, in the order that surfaces the biggest problems first.
1. Crawl the whole site
Start by seeing your site the way a search engine does. Run a full SEO crawl: a bot follows every link and records status codes, titles, redirects and reachability. This one pass surfaces broken links, redirect chains, and orphan pages no link points to. Do the crawl first, because everything else builds on the map it produces.
2. Check what is actually indexed
Crawlable is not the same as indexed. In Google Search Console, look at the Pages report: how many of your pages are indexed, and why the rest are not. Common culprits, "crawled, not indexed" (a quality signal) and "discovered, not indexed" (a crawl-budget or priority signal). If your money pages are missing here, nothing downstream matters. For the wider diagnosis, see why a site is not showing on Google.
3. Test rendering and JavaScript
Check that Google sees your content, not an empty shell. Disable JavaScript and reload a key page, then use URL Inspection in Search Console to view the rendered HTML Google stored. If your headings, text or links vanish without JavaScript, you have a rendering problem, covered fully in SEO and JavaScript.
4. Measure site speed and Core Web Vitals
Slow pages lose rankings and users. Run a page-speed test on your templates (homepage, a product page, a blog post) and check Core Web Vitals in Search Console. Focus on the biggest offenders, usually heavy images and oversized JavaScript bundles, not micro-optimizations. Details in site speed and SEO.
5. Confirm mobile-friendliness
Google indexes the mobile version of your site. Check that your pages render, read and function on a phone: tappable targets, readable text, no content hidden or broken on small screens. A desktop-perfect site that breaks on mobile is a site Google judges on the broken version.
6. Validate structured data
Structured data helps engines (and increasingly AI answer engines) understand your pages. Validate that your schema is present and error-free on the templates that use it, articles, products, FAQs. Broken structured data is worse than none, because it can disqualify you from rich results.
7. Review internal linking and architecture
A technically clean page nobody links to internally still struggles. Check that important pages are reachable in a few clicks, that no page is orphaned, and that your internal linking concentrates authority on the pages you want to rank.
8. Turn findings into a fix list, not a report
This is the step that separates a useful audit from an ignored one. Do not stop at "here are 143 issues". Sort every finding into two buckets, fix (broken, mistagged, slow) and create (pages the audit proves are missing), then order by impact: a single noindexed money page beats 200 trivial warnings. An audit that ends in a spreadsheet has changed nothing.
The faster path: audit that ends in a plan
Running all eight steps by hand takes time, and the report is only the start. The free SEO analysis does the crawl and scoring for you and returns the two lists already sorted: quick wins to fix and pages to create, each with a reason. The SEO automation pipeline then drafts the missing pages and publishes them to your CMS as drafts you approve, so the audit becomes ranked pages. For a one-off deep inspection on a large site, that is what a dedicated technical SEO audit service is for.
Start with the audit
Run the free SEO analysis to get your technical audit and its fix list in priority order, then work the top of the list first.
Frequently asked questions
Quick answers to the questions people ask most about this topic.
It is a review of the technical foundations that let search engines find, read, index and trust your site: crawlability, indexing, rendering, speed, mobile-friendliness, structured data and site architecture. It answers whether your pages can rank at all, before content and links even come into play.
A full audit once or twice a year for a stable site, plus a targeted one after any big change: a migration, a redesign, a platform switch, or a bulk publish. Ongoing monitoring catches new issues between audits so they do not quietly cost rankings.
Yes, for most small and mid-size sites. A crawler plus Google Search Console covers the majority of issues, and the steps are learnable. You mainly need a specialist for deep forensic problems, complex rendering, large migrations, or diagnosing why fixes are not working.
At minimum: a site crawler, Google Search Console for indexing and coverage data, and a page-speed test. Many tools bundle these. What matters more than the tool is turning its output into an ordered fix list rather than an untouched report.
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