Technical SEO Audit: Which Fixes Come First?

In a technical SEO audit, fix indexing problems first, then site structure, then duplicate content, then speed, then structured data and redirects. Put any site through an SEO crawler and the report will list hundreds or even thousands of warnings, from absent image alt attributes and overlong titles to chained redirects and repeated meta descriptions. Spotting issues is easy. The hard part is telling which ones hold the site back and which you can safely leave.

This guide takes the technical areas in order of importance. First, make sure Google can find and index the pages that matter. Next, help it understand them. Finally, make them fast and reliable. Follow that order and you will tackle the problems that lose traffic before the ones that only look messy.

1. Are your key pages crawled and indexed by Google?

If your key pages are missing from Google's index, nothing else on this list will help. Open the Page indexing report in Google Search Console and confirm that your most valuable pages, like service pages, product categories and leading articles, are indexed.

• Review robots.txt for rules that block important sections by mistake.
• Search for leftover noindex tags, which are often forgotten after a launch or redesign.
• Check that the XML sitemap lists only live, indexable pages and has been submitted in Search Console.
• Make sure canonical tags point to the version of each page you want to rank.

2. Is your site structure helping or holding you back?

Your site structure helps when key pages sit close to the homepage and receive plenty of internal links. Search engines partly judge a page's weight by how it is linked, so pages buried five or six clicks deep, or with no internal links at all, get crawled less and rank lower.

• Keep key pages no more than three clicks from the homepage.
• Look for orphan pages that no internal link points to, and link to them from related pages.
• Write internal link text that describes the target page, in place of phrases like 'click here'.
• On ecommerce sites, manage filter and faceted navigation URLs so they don't generate thousands of near-copies.

3. Is duplicate or thin content splitting your rankings?

Duplicate content splits your rankings when several pages chase the same topic, because they compete and none ranks as well as one strong page would. Look for pages aimed at the same keyword, location or product pages that are almost identical, and short pages that add little. Combine them with redirects, fold the best material into one page, or give each page its own clear purpose.

4. Do your pages pass Core Web Vitals?

Your pages pass Core Web Vitals when real visitors get a good score on all three of Google's measures of speed and stability, which affect both rankings and conversions:

• Largest Contentful Paint (LCP): how fast the main content shows up. Target 2.5 seconds or under.
• Interaction to Next Paint (INP): how fast the page reacts to a click or tap. Target 200 milliseconds or under.
• Cumulative Layout Shift (CLS): how much the layout moves while the page loads. Target 0.1 or under.

Rely on field data in Search Console, which comes from real visitors, and don't depend on lab tests alone. The usual causes are oversized images, heavy third-party scripts, poorly optimised web fonts and elements that load without space set aside for them.

5. Is your structured data correct?

Correct structured data tells search engines what a page covers, such as an organisation, a product, an article or a set of FAQs, and can qualify it for richer search results. Add the schema types that match the page content, check them with Google's Rich Results Test and never mark up content that visitors cannot see on the page.

6. Are redirects and links sending people to the right place?

• Update internal links that lead to 404 pages or to redirects so they go straight to the final URL.
• Swap redirect chains for a single redirect wherever you can.
• Set up 301 redirects for any page that has moved permanently.
• After a redesign or migration, check that every old URL with traffic or backlinks redirects to its nearest equivalent.

How should you prioritise the fixes?

Prioritise by rating each issue on two scales: how much traffic or revenue it touches, and how much work the fix needs. Begin with fixes that have a large impact and need little effort, on the pages that matter most to the business. One indexing fault on a key service page outweighs a thousand missing alt tags on old blog posts.

Next, fix problems in templates wherever possible. Correcting a fault in the product page template repairs every product page at once, which is far quicker than editing pages one at a time.

What should you do next?

Open Search Console today and check whether your ten most valuable pages are indexed and pass Core Web Vitals. That short check often uncovers the largest opportunity on the site. For a full, ranked view, a technical SEO audit orders every issue by its likely effect on traffic and revenue.