Technical SEO Audit — The 20 Checks That Move The Needle
Table of Contents
- Overview
- Key takeaways
- How to apply
The Big 20
- Core Web Vitals
- HTTPS + HSTS
- Mobile usability
- Schema markup
- Canonical tags
- robots.txt + sitemap.xml
- Indexability
- Internal linking
- Broken links
- Image alts
- Hreflang (if multi-region)
- Crawl budget
- Duplicate content
- 301 redirect chains
- Render-blocking JS
- Critical CSS
- Page speed
- [Mobile-first-why-your-website-must-load-in-under-a-second)](/blog/mobile-first-[[design-agency-in-2026)](/blog/website-design-uk-how-to-choose-a-premium-agency-in-2026)](/blog/how-ai-is-changing-website-design-for-uk-businesses-in-2026)-why-your-website-must-load-in-under-a-second)
- Structured data validation
- E-E-A-T signals
How we apply this for clients
This work is included in our SEO & AI [[[Search Optimization](/blog/ai-search-optimization-aiso-the-2026-definitive-guide)](/blog/seo-vs-ai-search-optimization-what-uk-businesses-need-to-know)](/seo-ai-search-optimization) [[service-for-garages-and-mot-centres)](/blog/service-booking-[[automation](/blog/ai-automation-for-uk-smes-12-workflows-that-save-10-hours-a-week)](/blog/how-small-businesses-can-use-ai-automation-to-save-time)-for-garages-and-mot-centres)](/blog/custom-gpts-for-uk-agencies-consultancies-and-service-firms).
Frequently Asked Questions
How long until I see SEO results?
Most UK SMEs see meaningful movement in 60–90 days, compounding from month 3 onwards.
Ready to start?
Book a free strategy call with WebsiteAndGo or request a fixed-price proposal within 48 hours. We're a senior UK team — no offshore handoffs.