DIY SEO Audit Instructions For Ecommerce Sites

John Butterworth

Most ecommerce sites lose organic traffic not because Google penalises them, but because nobody has ever checked whether the basics are in place. An ecommerce SEO audit strips that guesswork out. It is a page-by-page inspection of your shop’s technical setup, content, user experience, and backlink profile, run against what Google’s crawlers and your actual customers need to find and buy your products. Gymshark, Boohoo, ASOS: the UK retailers that consistently win organic market share all run structured audits on a fixed schedule. The ones losing ground tend to treat SEO as a set-and-forget task baked into their initial site build.

This guide walks through every stage of a DIY ecommerce SEO audit, from crawlability checks in Screaming Frog through to backlink toxicity scoring in Ahrefs. If you’d rather hand the whole job to specialists, Mint SEO’s ecommerce SEO audit service covers all nine phases below and delivers a prioritised fix list tied to projected revenue impact.

What an Ecommerce SEO Audit Covers

The Four Layers of an Audit

An ecommerce SEO audit breaks into four connected layers, and skipping any one of them leaves gaps that compound over time.

Technical infrastructure is the crawl-and-index layer. It covers XML sitemaps, robots.txt directives, canonical tags, redirect chains, server response codes, and Core Web Vitals. If Googlebot can’t reach or render your product pages, nothing else in the audit matters. This is the foundation you build on.

On-page content examines whether your category pages, product descriptions, and blog posts match the search intent behind the keywords they target. A category page for ‘men’s running shoes’ that reads like a manufacturer spec sheet will lose to a competitor page featuring a buying guide with fit advice, terrain comparisons, and internal links to related product pages.

User experience signals sit between content and technical. Bounce rates, scroll depth, pogo-sticking back to Google, rage clicks on broken filters. These behavioural signals tell you whether real shoppers are getting what they expected when they landed on your page.

Off-page authority is your backlink profile and brand mention footprint. This layer determines whether Google trusts your site enough to rank it above competitors selling identical products at similar prices.

When to Run an Audit

Every six months is the right cadence for a full audit on most ecommerce sites. Certain events should trigger an immediate one regardless of your schedule, though. A platform migration from Magento to Shopify, for example, is one of the highest-risk SEO events any shop will face. I’ve seen retailers lose 40% of their organic traffic within a fortnight of going live on a new platform because nobody mapped the old URL structure to the new one before flipping the switch.

Other triggers worth acting on straightaway:

  • A confirmed Google core algorithm update, particularly if your rankings shift within the same week
  • Organic traffic dropping more than 20% month-on-month in Google Analytics 4
  • A major redesign or template change, even if URLs stayed the same
  • Pre-peak season preparation (run a full audit in August if Black Friday is your biggest trading period)

Choosing the Right KPIs

Keyword rankings are a vanity metric on their own. A site can rank position one for a term nobody searches, whilst a competitor ranking fifth for a high-intent commercial query generates ten times the turnover. The KPIs that tie an audit to actual business performance are different.

Organic revenue tracked in Google Analytics 4 with enhanced ecommerce enabled is the single most important number. Set up proper attribution so you can see exactly how many pounds organic search generates each month.

Index coverage ratio tells you how much of your catalogue Google has actually included in its index. Pull the numbers from the Pages report in Google Search Console. If you’ve got 8,000 products but only 3,200 indexed pages, over half your catalogue is invisible to search.

Conversion rate by channel reveals whether organic visitors convert at the same rate as paid or direct traffic. A big gap here usually points to a mismatch between the keywords you’re ranking for and the pages those visitors land on.

Technical Audit vs Full SEO Audit

A technical audit checks whether your site functions correctly from a crawler’s perspective. Can Googlebot access your pages? Do your canonicals resolve? Are redirect chains under control? It is a pass-or-fail exercise for each element.

A full SEO audit goes further. It asks whether the pages Google can crawl are actually worth ranking. A technically perfect product page with a 12-word manufacturer description is crawlable and indexable, but it won’t outrank a competitor who has written 400 words of original copy covering materials, sizing, and use cases. The technical audit finds broken plumbing. The SEO audit decides whether the house is worth living in.

Technical SEO Audit

Crawlability and Indexation Checks

Start by pulling up your XML sitemap, usually at yoursite.com/sitemap.xml or yoursite.com/sitemap_index.xml on Shopify. Open it and check three things: does it include all your indexable product and category URLs? Does it exclude pages you’ve set to noindex? And has it actually updated recently? Shopify generates sitemaps automatically, but WooCommerce sites relying on Yoast or Rank Math need the sitemap regeneration setting switched on, and it’s worth verifying the output manually.

Your robots.txt file sits at yoursite.com/robots.txt. One misplaced disallow directive can hide entire product categories from Googlebot. On Shopify, the default robots.txt blocks /admin, /cart, and /checkout, which is correct. On WooCommerce, plugin conflicts sometimes inject rogue disallow rules that block /wp-content/uploads/ or faceted navigation paths you actually want crawled.

Crawl budget matters once your site passes a few thousand URLs. Google won’t crawl every page daily, so wasting crawl budget on filtered search results, paginated tag pages, or session-ID URLs means your new product pages take longer to get picked up. Use the Crawl Stats report in Google Search Console to spot where Googlebot spends its time, then compare that against the pages generating actual revenue.

Response Codes and Redirects

Run a full crawl in Screaming Frog and filter the results by status code. This single export will flag the majority of your technical issues.

Redirect chains are the most common problem I spot on ecommerce sites that have been trading for more than a couple of years. Product URLs get redirected during a redesign, then redirected again during a platform migration, creating A→B→C chains that slow page loads and bleed PageRank at each hop. Screaming Frog’s redirect chain report makes these easy to spot. Fix them by pointing A directly to C.

Soft 404s are trickier. These are pages that return a 200 status code but display ‘product not found’ or an empty template. Google Search Console flags these under the Pages report, but Screaming Frog won’t catch them automatically because the server response looks normal. You need to check for them by crawling and filtering pages with very low word counts or missing product schema.

Core Web Vitals and Page Speed

Google’s own research shows that pages meeting Core Web Vitals thresholds see a 24% reduction in page abandonment. For an ecommerce site doing £50,000 a month in organic revenue, that’s a significant chunk of recovered sales just from speed improvements.

Largest Contentful Paint (LCP) needs to come in under 2.5 seconds. On product pages, the LCP element is almost always the main product image. Compress it, serve it in WebP format, and set explicit width and height attributes so the browser reserves space before the image loads. Shopify’s CDN handles format conversion automatically. WooCommerce sites need a plugin like ShortPixel or Imagify to manage this.

Cumulative Layout Shift (CLS) should stay below 0.1. The usual culprits on ecommerce sites are late-loading review widgets, injected upsell banners, and lazy-loaded images without dimension attributes. Check your CLS score per page template in Search Console’s Core Web Vitals report, because a single bad template can drag down your entire site’s field data.

Interaction to Next Paint (INP) replaced First Input Delay in March 2024 and measures responsiveness across the entire page session, not just the first click. Heavy JavaScript from third-party apps is the main offender. On Shopify, I regularly find shops running 15+ apps where removing five unused ones cuts INP by half.

Mobile Usability

Mobile accounts for over 60% of ecommerce traffic worldwide, and Google uses mobile-first indexing, so the mobile version of your site is the one that determines your rankings. Test on actual devices, not just Chrome DevTools. The experience of tapping a 32-pixel button with your thumb is completely different from clicking it with a mouse cursor.

Touch targets need to be at least 48×48 pixels with adequate spacing between them. Text should be legible at default zoom, which means a minimum of 16px base font size. Horizontal scrolling should never happen on any page. And forms, particularly checkout forms, should use the correct input types so that mobile keyboards show number pads for phone fields and email keyboards for email fields.

Accessibility Checks

Accessibility and SEO share a surprising amount of common ground. Screen readers rely on the same semantic HTML hierarchy that Googlebot uses to understand your page structure. Proper heading hierarchy (H1 followed by H2, never jumping from H1 to H3), descriptive alt text on product images, sufficient colour contrast at a 4.5:1 ratio for body text, and full keyboard navigability through your checkout flow all serve both purposes simultaneously. Run your key templates through the WAVE accessibility checker or Lighthouse’s accessibility audit to catch the worst offenders quickly.

Audit Tools Worth Paying For

Google Search Console is free and non-negotiable. The Pages report shows exactly which URLs Google has indexed and why others were excluded. The Performance report breaks down clicks, impressions, and average position by query and page. Check it weekly at minimum.

Screaming Frog SEO Spider crawls your site the way Googlebot does, surfacing broken links, missing meta tags, duplicate titles, and redirect chains at scale. The free version handles up to 500 URLs. The paid licence (£199/year) crawls unlimited URLs and includes JavaScript rendering, which you’ll need if your site loads product content dynamically.

PageSpeed Insights gives you both lab data (simulated) and field data (from real Chrome users) for Core Web Vitals. Lab data is useful for diagnosing problems. Field data tells you whether real visitors are actually experiencing those problems. Both matter.

For sites with 10,000+ products, combining Semrush Site Audit with Sitebulb for visualisation and ContentKing for real-time change monitoring gives proper coverage. Budget £200 to £800 a month depending on your catalogue size and the number of tools you need.

On-Page and Content Audit

Category and Product Page Content

Thin product pages are one of the most common issues I find when auditing ecommerce sites built on Shopify or WooCommerce. The product arrives from the supplier with a three-line description, gets uploaded via a CSV import, and sits there untouched for years. Google has very little to work with. Competing retailers who write 300 to 500 words of original product copy, covering materials, sizing guidance, and specific use cases, consistently outrank those relying on manufacturer descriptions alone.

Category pages deserve even more attention because they tend to target higher-volume, more competitive keywords. A bare category page with nothing but a product grid and a H1 tag won’t rank against a competitor whose category page includes an 800-word buying guide, a comparison table, and FAQ markup answering genuine shopper questions. Your ecommerce keyword research should inform which categories get content investment first, prioritising those with the highest commercial search volume.

Keyword Mapping and Metadata

Every indexable page on your site should have a single primary keyword target. Build a spreadsheet mapping each URL to its target keyword, then audit the metadata for that URL against it.

Title tags should be 50 to 60 characters and include the primary keyword. On product pages, a pattern like ‘Product Name | Category | Brand’ works well because it captures both the specific product query and the broader category term. Screaming Frog’s Page Titles report flags duplicates, truncated titles, and missing titles across your entire site in one export.

Meta descriptions don’t directly affect rankings, but they do affect click-through rate from the search results page. Write them at 150 to 160 characters and include something that differentiates your listing: free delivery, 30-day returns, next-day dispatch. Test different approaches and compare CTR in Search Console’s Performance report over 28-day windows.

H1 tags should be present on every page, unique, and include the primary keyword naturally. Never copy your title tag verbatim into the H1. Use the H1 to describe the page for the reader and the title tag to compete for the click in search results.

Duplicate and Thin Content

Ecommerce sites generate duplicate content almost by default. Colour and size variants often create near-identical pages with separate URLs. Faceted navigation appends filter parameters that produce thousands of crawlable URL variations for the same product set. Print-friendly page versions sometimes lack canonical tags entirely.

Use Siteliner for a quick site-wide duplication percentage, then cross-reference with Screaming Frog’s Near Duplicates report (available in the paid version) for detailed page-level matching. Anything above 50% duplication needs addressing through canonical tags, parameter handling rules in Search Console, or noindex directives. On Shopify, variant pages are the usual culprit. On WooCommerce, it’s often tag and attribute archive pages that Yoast hasn’t been configured to noindex.

Blog Content Performance

A blog that doesn’t drive qualified traffic to product pages is dead weight. Pull your blog URLs into a spreadsheet and add columns for organic sessions (from GA4), target keyword, current ranking position (from Search Console), and internal links to product or category pages. Sort by organic sessions descending. The posts at the bottom of that list are candidates for consolidation, rewriting, or removal. Posts with decent impressions but low clicks probably need better title tags and meta descriptions. Posts with no impressions at all either target keywords nobody searches or have indexation problems worth investigating.

Internal Linking Structure

Internal links distribute PageRank around your site and help Google understand which pages are most important. Most ecommerce sites underuse them badly. The ideal internal linking structure follows a clear hierarchy: homepage links to main categories, categories link to subcategories, subcategories link to products, and products link back to their parent category and to related items. Your blog posts should link to relevant product and category pages using descriptive anchor text. If you’ve written a guide about choosing running shoes, it should link to your running shoes category page, not sit orphaned with zero internal links to your commercial pages.

Screaming Frog’s Link Metrics tab shows internal link counts per page. Any product or category page with fewer than three internal links pointing to it is likely underperforming relative to its potential. Your ecommerce SEO strategy should include a structured plan for building internal links between content and commercial pages.

Helpful Content Alignment

Google’s Helpful Content system evaluates whether your content is written for people or for search engine crawlers. For ecommerce sites, this means asking a blunt question about every page: would a shopper find this useful even if Google didn’t exist?

Product pages should go beyond manufacturer specifications to include original photography, real-world use context, and sizing or compatibility details a buyer genuinely needs. Category pages need editorial content that helps shoppers weigh their options, not keyword-stuffed intro paragraphs nobody reads. Blog posts should demonstrate hands-on expertise rather than surface-level summaries scraped from competitor articles.

Sites that got hit by the Helpful Content updates in 2023 and 2024 shared a pattern: mass-produced pages with minimal differentiation, thin descriptions padded to a word count target, and blog content that existed purely to capture informational keywords with no genuine value to the reader. The recovery path involves consolidating thin pages into fewer, more substantial ones, and rewriting template-generated copy with original, product-specific detail.

Schema Markup Validation

Structured data helps Google display rich results for your products, including price, availability, review stars, and breadcrumb trails. The Product schema is the most important for ecommerce. It should include the offer price, currency, availability status, SKU, and aggregate review rating where applicable.

Review stars in search results can increase click-through rates by up to 35%, which makes getting your Review schema right a quick win with measurable impact. FAQ schema on category pages and buying guides is also worth implementing because it expands your listing’s real estate on the results page, pushing competitors further down.

Test every schema type you’ve implemented using Google’s Rich Results Test. Even minor JSON-LD errors, like a missing ‘availability’ field or an incorrect price format, can prevent rich results from appearing entirely. On Shopify, the Dawn theme includes basic Product schema by default, but it often needs extending to cover reviews and FAQ. On WooCommerce, Yoast SEO or Rank Math handle most of the schema generation, though you’ll need to verify the output matches what Google expects.

UX and Conversion Layer

UX Metrics That Affect Rankings

User behaviour feeds back into organic performance. Google’s systems pick up on patterns like pogo-sticking, where a searcher clicks your result, lands on your page, then hits back to click a competitor’s listing instead. That pattern repeated across enough users signals poor relevance or poor experience, and your rankings adjust accordingly.

Track bounce rate by landing page template in GA4. Product pages with bounce rates above 65% usually have a mismatch between the search query and the page content, or a usability issue that drives visitors away before they engage. Average session duration on product pages should sit above two minutes. If it’s under a minute, shoppers aren’t reading descriptions, viewing additional images, or checking reviews, which suggests the page isn’t giving them enough reason to stay. Pages per session for organic visitors should average three to four across the site. Lower numbers indicate a dead-end experience where visitors can’t easily find related products.

Session Recordings and Heatmaps

Analytics tell you what happened. Session recordings show you why. Microsoft Clarity is free and provides both session replays and heatmaps with no traffic caps. Hotjar offers a more polished interface with survey tools, though the free tier limits recordings.

Watch at least 30 session recordings from organic landing pages before forming conclusions. Look for patterns: are shoppers scrolling past your add-to-basket button without seeing it? Are they tapping on elements that aren’t clickable? Are mobile visitors abandoning at the point where they need to scroll horizontally to see a size chart? Clarity’s rage click and dead click filters surface the most frustrating moments automatically, saving you from watching hundreds of recordings to find the problems that matter.

Mobile UX Beyond Speed

Mobile speed is only part of the equation. Navigation on mobile needs to be operable with one hand, which means key elements should sit in the lower two-thirds of the screen where thumbs can reach them. Hamburger menus tucked into the top-left corner are technically functional but physically awkward on larger handsets.

Checkout is where mobile UX matters most for revenue. Every extra form field reduces mobile conversion by roughly 7% per field. Offer guest checkout. Enable autofill. Use single-column layouts. If your checkout process has more than four steps on mobile, it’s worth testing a reduced version against your current flow using a tool like VWO or Convert.

Product image galleries on mobile should support pinch-to-zoom and swipe navigation. Shoppers can’t pick products up and turn them over, so your images need to compensate with multiple angles and lifestyle context shots that show scale and fit.

Connecting UX Problems to SEO Outcomes

UX problems and SEO problems are often the same problem viewed from different angles. A product page with a confusing layout causes high bounce rates, which reduces dwell time, which over time correlates with declining rankings for that page’s target keyword. Fixing the layout improves the user experience, which improves the behavioural signals, which gives the page a better chance of holding its position.

Compare organic traffic behaviour against paid traffic behaviour in GA4 using channel segments. If organic visitors bounce at 60% but paid visitors bounce at 35% on the same pages, the issue is likely a mismatch between what your pages promise in the organic search results and what they deliver on arrival. That’s a metadata and content alignment problem more than a UX one. If both channels bounce at similar rates, the page itself needs reworking. Understanding where the leak sits determines whether you fix your meta descriptions or your page layout.

Off-Page SEO and Backlink Audit

Auditing Your Backlink Profile

Export your full backlink profile from Ahrefs or Semrush and start by looking at four things.

Domain Rating distribution across your referring domains tells you the quality shape of your profile. A healthy ecommerce backlink profile has the bulk of its links from DR 20 to 50 sites, with a smaller cluster from DR 50+ editorial and industry sources. If most of your links come from DR 0 to 10 domains, that’s a spam signal worth investigating.

Anchor text breakdown should look natural. Brand name anchors (‘Yourshop’ or ‘Yourshop.co.uk’) should make up 40% to 60% of the total. Exact-match keyword anchors (‘buy men’s running shoes UK’) should be under 5%. Over-optimised anchor text profiles have triggered Penguin penalties for years, and even post-Penguin, unnatural anchor distributions correlate with suppressed rankings.

Link velocity shows the rate of new and lost links over time. Steady, gradual growth tied to content publication is the pattern Google expects. Sudden spikes, whether from a PR campaign or a negative SEO attack, deserve investigation.

Referring domain diversity matters more than raw link count. No single domain should account for more than 5% of your total referring domains. If one site contributes 200 of your 500 backlinks, your profile is fragile.

Spotting Toxic Links

Not all backlinks help. Some actively hold your rankings back. Links from unrelated foreign-language sites, sitewide footer links from web design agencies, PBN (private blog network) links with exact-match anchors, and links from hacked or spam-injected pages are all red flags. Ahrefs tags suspected spam domains automatically, but you’ll still need to review the flagged list manually because automated scoring occasionally catches legitimate niche sites with low traffic.

Brand Mentions and Digital PR

Unlinked brand mentions are one of the easiest link building wins available. Set up Google Alerts for your brand name, product names, and founder name. When a journalist, blogger, or forum user mentions you without linking, a polite email asking for a link converts at a surprisingly high rate because the writer has already chosen to reference you.

For ecommerce brands, gift guides, seasonal roundup posts, and product review features in trade publications like Retail Week or industry-specific blogs are the most productive digital PR formats. Mint SEO’s digital PR and link building service focuses specifically on earning editorial links from publications relevant to ecommerce and retail.

Using the Disavow Tool

Google’s disavow tool in Search Console tells Google to ignore specific backlinks when assessing your site. It’s a blunt instrument and should be used sparingly. The process is straightforward but needs discipline.

Contact the webmaster first and request removal. Wait four to six weeks. If the link stays, add the domain to your disavow file. Update the file quarterly rather than constantly tweaking it. And never disavow a link purely because it has a low Domain Rating. Low DR doesn’t mean harmful. Disavow genuinely spammy or manipulative links only.

Competitor Link Gap Analysis

Ahrefs’ Link Intersect tool shows domains that link to your competitors but not to you. Filter the results for DR 40+ editorial sites, then examine what content earned those links. If three competitors all have links from a particular trade publication’s annual roundup, that publication is worth pitching to. If a competitor earned links from a data study or an infographic, consider whether you can produce something better on a related topic.

International and Multilingual SEO

Hreflang, Canonicals, and URL Structures

If you sell internationally, hreflang is the single most error-prone piece of technical SEO you’ll deal with. The tags tell Google which version of a page to show users in each country and language combination. Get them wrong and your UK product pages compete against your own US pages, splitting authority between them.

Every regional page needs a self-referencing hreflang tag plus tags pointing to every other regional version, including an x-default fallback. A UK page selling trainers needs hreflang=”en-gb” pointing to itself, hreflang=”en-us” pointing to the US version, and x-default pointing to whichever version should serve as the catch-all for users in unsupported regions. Missing any of these creates gaps that Google fills unpredictably.

For URL structure, subdirectories (example.com/uk/) are the easiest to manage and consolidate domain authority. ccTLDs (example.co.uk) give stronger local signals but split your link equity across separate domains. Subdomains (uk.example.com) sit somewhere in between, with neither the authority consolidation benefits of subdirectories nor the local strength of ccTLDs.

Currency and Language Detection

IP-based automatic redirects cause more problems than they solve. If you redirect users based on their IP address, you’re also redirecting Googlebot, which crawls from US-based servers and may never see your UK or EU versions. The safer approach is to detect the user’s location and display a banner suggesting the appropriate regional site, whilst keeping all versions crawlable from any location.

Currency switchers built with JavaScript are another pitfall. If the currency changes client-side without altering the URL or the server-rendered HTML, Google sees only the default currency regardless of which version the user selected. Make sure each currency version has its own URL or is handled server-side so that Googlebot can index prices in the correct local currency.

CDN and Server Location

CDN configuration determines how quickly your pages load for users in different geographies. Use GTmetrix to test load times from multiple locations. If you’re targeting Australian customers from UK-based servers without a CDN, expect 200ms or more of additional latency before the first byte even arrives. Cloudflare’s free tier is a reasonable starting point for smaller ecommerce sites. Larger operations should look at Fastly or Akamai for finer control over cache rules and edge logic.

Platform-Specific Audit Considerations

Each ecommerce platform has its own set of SEO quirks that a generic audit checklist won’t catch.

Shopify forces a /collections/ and /products/ URL structure that you can’t change. Its blog sits under /blogs/news/ by default, which is awkward for content-heavy SEO strategies. The bigger audit concern on Shopify is app bloat: each installed app typically injects its own JavaScript and CSS files, and the cumulative effect on page speed can be severe. Audit your theme.liquid file for script tags from apps you’ve already uninstalled. Shopify doesn’t always clean up after itself.

Magento (now Adobe Commerce) is powerful but needs careful technical configuration. Layered navigation creates crawlable filtered URLs by default, generating thousands of near-duplicate pages that waste crawl budget. Check the SEO settings under Stores → Configuration → Catalog → Search Engine Optimisation and make sure ‘Use Categories Path for Product URLs’ is set correctly for your structure.

WooCommerce relies heavily on plugins, and plugin conflicts are the most common technical SEO issue I see on WordPress-based shops. Yoast and Rank Math can clash if both are active. Security plugins sometimes block Googlebot by mistake. And cheap shared hosting environments regularly fail to handle crawl spikes from Googlebot, returning 503 errors that delay indexation. Check your server error logs alongside your Search Console crawl stats.

BigCommerce has decent built-in SEO features, but its automatic canonical tags sometimes point to the wrong URL, particularly on product pages accessible through multiple category paths. Verify canonical accuracy across a sample of product pages using Screaming Frog’s Canonicals report.

AI and Automation in Audits

Where AI Speeds Things Up

Auditing a site with 50,000 or more products manually would take weeks. AI-assisted workflows compress that timeline significantly by handling the pattern recognition and data classification that humans find tedious and slow.

Export your Screaming Frog crawl data as a CSV, upload it to ChatGPT or Claude, and ask specific questions: ‘Which URL patterns have the highest proportion of 404 errors?’, ‘Group pages by word count and identify templates producing thin content’, ‘Flag all product URLs missing Product schema’. What used to require pivot tables and manual filtering now takes minutes. The answers aren’t perfect and need human verification, but the speed gain on the initial triage is substantial.

Automated Monitoring Dashboards

Static audit reports go stale the moment you finish writing them. Looker Studio connects directly to Search Console and GA4, letting you build dashboards that update automatically. Set up views showing indexation trends over time, Core Web Vitals scores by page template, organic traffic by product category, and high-impression/low-CTR keywords that represent quick optimisation wins.

Automated email alerts triggered by significant week-over-week changes in these metrics turn your audit from a periodic exercise into ongoing surveillance. A 15% drop in indexed pages or a sudden spike in 404 errors gets flagged before it has time to compound into a ranking problem.

What AI Can’t Do

AI can tell you that 500 product pages have duplicate descriptions. It can’t tell you whether to rewrite them, canonical them, or noindex them. That decision depends on which products drive revenue, which have organic potential, and what your team has the capacity to execute in the next quarter. Strategy and prioritisation still need a human who understands the business context. The strongest audit process combines AI for data processing with human expertise for interpretation and decision-making.

Prioritising Fixes and Calculating ROI

The Effort vs Impact Matrix

A thorough audit produces dozens of findings. Fixing them all simultaneously isn’t realistic, and attempting it usually means nothing gets done properly. Score each issue on two axes: impact (how much revenue or traffic does this affect?) and effort (how long will it take to fix?). Divide impact by effort to get a priority score.

Indexation issues on revenue-generating product pages score highest because they directly block sales and typically need only a robots.txt or canonical tag fix. Page speed improvements across sitewide templates score high because they affect every page simultaneously. Content rewrites for category pages score well on impact but require more effort. Schema markup additions sit in the middle. Cosmetic issues like image alt text on blog posts go to the bottom of the list.

Framing Recommendations in Revenue Terms

Executives and business owners don’t care about Domain Rating. They care about turnover. Frame every audit recommendation in pounds and pence. Instead of ‘Fix 404 errors on product pages’, present it as ‘Restoring 47 broken product pages could recover an estimated £12,000 in monthly organic revenue based on their historical traffic and conversion data in GA4.’

The formula is straightforward: affected pages × average organic sessions per page × expected improvement × conversion rate × average order value. It won’t be precise, but it gives decision-makers a number to weigh against the cost of implementation.

Speed Fix ROI Example

Here’s how a page speed improvement translates to revenue on a typical mid-size ecommerce site:

MetricBeforeAfter Speed FixChange
Page Load Time5.2s2.8s-46%
Bounce Rate58%51%-12%
Conversion Rate1.8%2.1%+17%
Monthly Organic Revenue£45,000£52,650+£7,650

The speed work in this example cost £2,000 to implement across all product page templates. It paid for itself within a fortnight and continues generating additional revenue every month. Improvements like these are why page speed sits near the top of most audit priority lists.

Realistic Time Estimates

For a shop with around 1,000 products, plan for 40 to 80 hours of audit work spread over three to four weeks. The technical crawl and analysis phase takes roughly 24 hours across the first two weeks. Content auditing, including gap analysis and competitor benchmarking, fills another 28 hours in weeks two and three. UX analysis with session recording review adds 16 to 24 hours. Implementation planning and documentation takes a further 8 hours.

Smaller catalogues under 100 products might manage in 20 hours total. Sites with 10,000+ SKUs should budget 120 to 200 hours, and at that scale it’s usually more cost-effective to bring in specialists. Mint SEO’s SEO audit and strategy service is built specifically for ecommerce sites at this scale.

Reporting and Ongoing Monitoring

Structuring Your Audit Report

An audit that sits in a PDF nobody opens is worthless. Structure the report for the audience who needs to act on it.

Lead with a one-page summary showing three numbers: estimated revenue currently lost to SEO issues, projected revenue gain from fixes, and required investment to implement. Use graphs rather than paragraphs. Anyone who only reads this page should still walk away understanding the business case.

Follow with a prioritised action list of your top ten fixes ranked by ROI. Be specific. ‘Improve page speed’ is not an action item. ‘Compress and convert product images on the /collections/ template affecting 2,500 URLs, estimated to reduce LCP from 4.1s to 2.3s’ is.

The detailed findings section (10 to 20 pages) should be organised by severity: issues blocking revenue, issues suppressing rankings, and best-practice improvements. Include screenshots and specific URLs for every issue. A technical appendix with raw crawl data, spreadsheets, and methodology notes goes at the back for anyone who wants to verify your workings.

Communicating Progress

Share weekly updates during the implementation phase. Brief messages work best: ‘Resolved 200 broken internal links, recovered 15 orphaned product pages, improved average LCP by 0.8 seconds.’ These build momentum and keep SEO on the agenda.

Monthly reports should tie actions directly to outcomes. ‘The speed improvements implemented in January increased organic conversion rate from 1.8% to 2.1%, generating an additional £7,650 in monthly revenue.’ Quarterly business reviews show cumulative impact: year-over-year organic revenue growth, organic channel cost-per-acquisition compared against paid channels, and market share movement against tracked competitors.

Building a Re-audit Rhythm

Monthly health checks should take no more than two hours and cover new 404 errors in Search Console, Core Web Vitals regression in the CrUX report, coverage issues flagging new excluded pages, and any sharp ranking movements on commercial keywords. Quarterly deep dives examine content performance trends, competitor link profile changes, and conversion rate shifts by landing page template. A full annual audit reassesses everything from scratch because markets shift, competitors launch new sites, and Google rolls out algorithm changes that alter the playing field.

Keep a master spreadsheet logging every change you make, the date implemented, the expected impact, and the actual measured result. Over twelve months, this log becomes your most valuable planning tool for the next audit cycle, because it shows which types of fixes delivered real returns and which ones weren’t worth the effort.

FAQs

How often should you perform an ecommerce SEO audit?

Full audits every six months, with quarterly targeted reviews of content performance and backlink health, and monthly automated checks on indexation, Core Web Vitals, and crawl errors. If you run a large catalogue (10,000+ products), continuous automated monitoring through tools like ContentKing or Lumar paired with quarterly manual reviews gives the best balance between coverage and cost.

What’s the difference between a technical audit and an SEO audit?

A technical audit focuses on infrastructure: can Google crawl and index your pages correctly? It checks sitemaps, robots.txt, redirects, canonical tags, and page speed. A full SEO audit includes the technical layer but adds content quality assessment, keyword mapping, user experience analysis, backlink profiling, and competitor benchmarking. The technical audit finds broken machinery. The SEO audit determines whether fixing that machinery will generate revenue.

What tools do I need for an ecommerce SEO audit?

At minimum: Google Search Console (free), Screaming Frog (free up to 500 URLs, £199/year for unlimited), and GA4 (free). For larger sites, add Semrush or Ahrefs for backlink and competitive analysis, ContentKing for real-time monitoring, and Microsoft Clarity (free) for session recordings and heatmaps.

How do you prioritise SEO audit fixes?

Score each issue on impact (revenue potential, scale of pages affected) and effort (implementation time, developer dependency). Divide impact by effort for a priority ranking. Fix crawlability blockers on revenue-generating pages first. Site speed improvements affecting all templates come second. Content gaps on high-volume category keywords come third. Schema and metadata refinements follow. Cosmetic improvements go last.

Which ecommerce platforms need special audit steps?

Shopify needs app bloat assessment and Liquid template auditing for leftover script tags. Magento needs layered navigation duplicate content checks and database performance review. WooCommerce needs plugin conflict testing and hosting environment assessment under crawl load. BigCommerce needs canonical tag verification across multi-category product paths. Custom-built platforms need thorough JavaScript rendering tests since they lack the SEO defaults that major platforms provide out of the box.

How do you present audit findings to your team or board?

Lead with revenue impact, not technical jargon. Show what the business is losing in organic revenue due to current issues, what it could gain from fixes, and what the implementation costs. Use graphs and screenshots rather than paragraphs of explanation. Organise findings by business impact (revenue-blocking, ranking-suppressing, best-practice) rather than by technical category. Include specific URLs, not vague descriptions. End with a prioritised action plan that assigns owners and deadlines to each action item.

Can AI replace manual SEO auditing?

AI is excellent at processing crawl data, classifying issues at scale, and spotting patterns across thousands of pages. It’s poor at making strategic decisions about what to fix first, understanding business context, or judging whether a piece of content is genuinely useful to a human reader. The most effective audit process uses AI for data crunching and pattern detection, then applies human judgement for prioritisation and strategy.

Turning Audit Findings Into Revenue

The gap between a completed audit and actual results sits entirely in implementation. Most shop owners who run their own audit get overwhelmed by the findings and stall. Pick the three highest-scoring fixes from your impact-vs-effort matrix, implement them in the next fortnight, measure the results over 30 days, then move to the next three. Momentum matters more than perfection at this stage.

If the audit has surfaced technical issues beyond your team’s capacity, Mint SEO’s technical SEO service handles implementation across Shopify, WooCommerce, Magento, and BigCommerce, with a focus on the fixes most likely to shift organic revenue.

Mint SEO founder John Butterworth

About the author

John Butterworth is the founder of Mint SEO, a fully dedicated ecommerce SEO agency. He is a Shopify SEO expert with over 10 years of experience. John has a proven track record of building high-converting websites that generate organic traffic from competitive keywords.