A comprehensive technical SEO audit checklist for Wix websites covering Core Web Vitals, structured data, crawlability, page speed, and mobile optimisation.
Key Takeaways
- Core Web Vitals (LCP, CLS, INP) are confirmed ranking signals, target LCP under 2.5s, CLS under 0.1
- Wix auto-generates XML sitemaps, verify all priority pages are included and submit to Google Search Console
- Canonical tags prevent duplicate content penalties when Wix creates URL variants
- Structured data on Wix requires adding JSON-LD via custom code blocks, Wix's native tools have limitations
- Mobile-first indexing means your Wix mobile experience is what Google evaluates for rankings
AI Summary
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Technical SEO is the invisible engine that powers your Wix website's organic performance. Without solid technical foundations, even the best content and link building strategy will underperform. This checklist covers every technical SEO element I audit across all my client Wix websites.
Core Web Vitals: Google's Page Experience Signals
Core Web Vitals are confirmed ranking signals. Google measures three metrics: Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and Interaction to Next Paint (INP). Failing these thresholds actively suppresses your rankings.
- LCP target: under 2.5 seconds (measures loading performance)
- CLS target: under 0.1 (measures visual stability)
- INP target: under 200 milliseconds (measures interactivity)
- Use PageSpeed Insights and Chrome UX Report for real-world data
- Compress and convert images to WebP format to improve LCP
- Preload critical above-the-fold images
- Minimise layout shift by setting explicit dimensions on images and embeds
Improving LCP from 4s to 2s can increase organic conversions by up to 15%
Crawlability and Indexation
Google can only rank pages it can crawl and index. Wix's robots.txt and noindex settings must be configured correctly.
- Verify your sitemap is submitted to Google Search Console
- Check no important pages are accidentally set to noindex in Wix settings
- Audit your robots.txt file to avoid blocking CSS or JavaScript files
- Fix 301/302 redirect chains to preserve link equity
- Resolve 404 errors by redirecting broken URLs to relevant live pages
- Use Google's URL Inspection Tool to check individual page indexation
Structured Data / Schema Markup on Wix
Schema markup helps Google understand your content and can unlock rich results (star ratings, FAQs, breadcrumbs) in the SERPs. Wix supports JSON-LD structured data, which is Google's preferred format.
- Implement LocalBusiness schema for local service pages
- Add FAQ schema to FAQ sections for rich result eligibility
- Use BreadcrumbList schema for site navigation clarity
- Add Review schema for businesses with customer testimonials
- Implement Article schema on all blog posts
- Test all structured data using Google's Rich Results Test
Mobile SEO for Wix Websites
Google uses mobile-first indexing, meaning your mobile site is what Google primarily evaluates for ranking. Wix's responsive editor makes mobile optimisation more accessible, but it still requires deliberate attention.
- Test your site on multiple real devices (not just browser emulation)
- Ensure tap targets are at least 48px in size on mobile
- Check text is readable without zooming (minimum 16px font size)
- Verify mobile navigation is intuitive and accessible
- Check mobile page speed separately, it's typically slower than desktop
Frequently Asked Questions
Use Google's PageSpeed Insights (pagespeed.web.dev) and Google Search Console's Core Web Vitals report. PageSpeed Insights gives you lab data for immediate testing; Search Console provides real-user data (field data) from actual visitors, which is what Google uses for ranking assessments.
The most common causes are: a noindex setting accidentally enabled on the page or in Wix site settings, the page being blocked in robots.txt, a crawl error detected in Google Search Console, or the page being too new (Google can take days to weeks to index new pages). Use Google Search Console's URL Inspection tool to diagnose the exact issue.
Yes. Wix automatically generates an XML sitemap for all published pages and submits it to search engines. You can view your sitemap at yourdomain.com/sitemap.xml. Always verify in Google Search Console that the sitemap is accepted and that all important pages are included.
Schema markup can be added to Wix websites through three methods: (1) Wix's built-in SEO tools for basic schemas, (2) Custom HTML code blocks (add JSON-LD directly to individual pages), or (3) the Wix Velo developer platform for programmatic schema implementation across dynamic pages. Always validate your schema using Google's Rich Results Test.
The five most damaging technical SEO issues on Wix websites are: failing Core Web Vitals (especially LCP above 2.5s), accidental noindex settings on key pages, missing or incorrect canonical tags creating duplicate content, unoptimised images causing slow load times, and broken internal links creating crawl dead-ends.
Book a comprehensive technical SEO audit for your Wix website. I'll identify every issue holding you back from page 1.
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