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How to Audit Your Website for Technical SEO Issues Yourself

Published 7 March 2026

You don't need an agency retainer to catch the most common technical problems dragging down your website's search performance. A surprising number of ranking issues come from a handful of recurring faults — broken links, duplicate content, slow pages, missing metadata — and most of them can be found with free tools and an hour or two of focused attention. Here's a practical walkthrough any Colchester business owner can follow without any specialist background.

Start With Google Search Console

If you've done nothing else technical for your site, verify it in Google Search Console first — it's free, takes minutes to set up, and gives you a direct line into how Google actually sees your pages right now. The Coverage report flags pages that are indexed, excluded, or throwing errors, while the Core Web Vitals report shows real-world speed data collected from actual visitors rather than a single lab test. Spend real time here before touching anything else, because it tells you where Google itself already believes the problems are hiding.

Check Your Crawlability

Search for your own site using the "site:" operator in Google to get a rough sense of how many pages are actually indexed, then compare that against how many pages you believe your site actually has published. A big mismatch in either direction is always worth investigating further. Next, check your robots.txt file for any accidental disallow rules blocking important sections, and review your XML sitemap to confirm it lists your current, live URLs rather than pages that were deleted or restructured months ago and never removed.

How to Audit Your Website for Technical SEO Issues Yourself

It's surprisingly common to find a robots.txt file left over from a staging site, quietly blocking Google from crawling parts of the live site that nobody remembered to unblock after launch.

Hunt Down Broken Links and Redirect Chains

Broken internal and external links waste crawl budget and create a poor user experience, both of which search engines factor into how they evaluate your site over time. Free tools like Screaming Frog's limited crawl mode, or online checkers such as Ahrefs' broken link checker, will scan your site and flag every dead link within minutes of running. While you're at it, look for redirect chains — pages that redirect to a redirect, rather than straight to the final destination — since each extra hop slows the page and dilutes ranking signals along the way.

  • Run a free crawl with Screaming Frog (up to 500 URLs) or a similar crawling tool
  • Export the list of 404s and broken links for fixing or redirecting properly
  • Flag any redirect chains longer than a single hop between pages
  • Check for orphaned pages with no internal links pointing to them at all

Review Titles, Metadata, and Duplicate Content

Duplicate or missing title tags and meta descriptions are one of the most common findings in any audit, particularly on ecommerce sites with filtered category pages or on sites built from a template without customising each page individually afterwards. A crawl tool will flag duplicates automatically without much manual effort. While reviewing, also check for duplicate or near-duplicate body content across pages — this often happens accidentally when a template is copied to create a new page and only partially edited before publishing.

Test Speed and Mobile Usability

Run your homepage and two or three key inner pages through Google's PageSpeed Insights tool, noting both the overall score and the specific opportunities it lists for improvement afterwards. Test on mobile as well as desktop, since Google predominantly uses the mobile version of your site for indexing and ranking decisions. While you're testing, manually browse your site on an actual phone too — automated tools often miss things like text that's too small to read comfortably or buttons placed too close together to tap accurately.

Check for Security and Accessibility Basics

Confirm your entire site loads over HTTPS with no mixed-content warnings anywhere, since an insecure connection is both a ranking factor and an immediate trust-killer for visitors landing on your pages. Beyond security, basic accessibility checks — image alt text present, sufficient colour contrast, a logical heading structure throughout — improve both usability and SEO simultaneously, since search engines rely on many of the same signals to understand page structure that assistive technology depends on too.

Knowing When to Bring in Outside Help

A self-audit will catch the obvious issues, but some technical problems — structured data errors, crawl budget waste on large sites, JavaScript rendering gaps — genuinely need specialist tools and years of experience to diagnose properly and fix correctly. If your self-audit turns up issues you don't know how to prioritise or fix confidently, that's the point to bring in a Colchester-based SEO team who can run a deeper audit and build a fix plan around what actually moves rankings, rather than chasing every minor flag a free tool happens to produce.

The Bottom Line

A DIY technical audit won't replace ongoing professional support, but it will get you most of the way toward a genuinely healthier site, and it costs nothing but a bit of your time. Work through Search Console, crawlability, broken links, metadata, speed, and security in that order, and you'll come away with a clear, prioritised list of what to fix — and a much better sense of when it's worth calling in professional SEO support for the deeper issues beyond a quick weekend fix.

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