What a technical SEO audit checks
A technical SEO audit finds the problems that stop search engines crawling, indexing and understanding your site. Here is what it covers.
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Key takeaways
- Crawlability and indexing come first: if pages aren't indexed, nothing else matters.
- Duplicate content, redirects and broken links waste search engines' attention.
- An audit is only useful with a prioritised fix list.
Technical SEO makes sure search engines can access, render and understand your website. An audit reviews the site systematically and produces a list of issues ranked by impact.
Crawling
- robots.txt: does it block anything important?
- Internal links: can every important page be reached in a few clicks?
- Orphan pages: are there pages no other page links to?
- Crawl errors: server errors, timeouts and broken links reported in Search Console or found by a crawler.
Indexing
- Index coverage: which pages are indexed, and why others are excluded.
- noindex tags: applied only where intended.
- Canonical tags: pointing to the correct version of each page.
- Duplicate content: the same content at several URLs, for example with and without trailing slashes, tracking parameters or filter combinations.
- XML sitemaps: listing only indexable, canonical URLs.
Redirects and status codes
- Old URLs redirect permanently (301) to the right new pages.
- No redirect chains or loops.
- Removed pages return 404 or 410 rather than redirecting everything to the home page.
Rendering
Search engines need to see your main content. Sites that rely heavily on JavaScript should be checked to confirm content and links are present in the rendered page.
Site architecture and URLs
Logical structure, readable URLs and consistent internal linking help search engines understand which pages matter most.
Page experience
- Core Web Vitals: loading, responsiveness and stability
- Mobile usability
- HTTPS across the whole site
Structured data
Schema markup present, valid and matching visible content.
International and multi-language setup
If you serve several languages or countries, hreflang annotations and URL structure are checked for consistency.
The output
A good audit ends with a prioritised list: what to fix, why it matters, how to fix it and how much effort it takes. Critical indexing problems come before minor warnings.
Our SEO service starts with a technical audit, and our website development team can implement the fixes.
Frequently asked questions
How often should we run a technical SEO audit?
A full audit once or twice a year, plus monthly checks in Search Console, is enough for most small and medium sites. Audit before and after any redesign or migration.
Can technical SEO alone improve rankings?
It removes obstacles. Rankings also depend on content quality, relevance and authority, so technical work is a foundation rather than the whole strategy.
