Great content cannot rank if search engines struggle to find, crawl or understand your website. Technical SEO is the foundation that makes everything else work. Use this checklist to review your business website. Key takeawaysTechnical SEO makes sure Google can find, crawl and understand your pages.Start with indexing, one site version, redirects and unique titles.Re-check the list every few months and after major changes. 1. Make sure Google can crawl and index your pagesCheck that robots.txt does not block important pages.Make sure key pages do not carry a noindex tag by mistake.Use Google Search Console's URL Inspection tool to confirm Google can reach your pages.2. Submit an accurate XML sitemapYour sitemap should list every page you want indexed and nothing else: no redirects, no error pages and no search result pages. Submit it in Google Search Console and Bing Webmaster Tools.3. Choose one version of your websiteYour site should load on one address only, for example https://www.yourdomain.com. Redirect the other versions (http, non-www) to it with permanent 301 redirects, and add a canonical tag to every page.4. Fix broken links and redirect old URLsBroken internal links waste visitors' time and search engines' attention. When you remove or rename a page, redirect the old URL to the most relevant new page so you keep its rankings.Search engines can only rank the pages they can crawl and understand. 5. Give every page a unique title and descriptionEach page needs its own title (around 60 characters) and meta description (around 155 characters) that describe the page and encourage the click. Duplicate titles make it harder for Google to tell pages apart.6. Use one clear H1 per pageThe main heading should say what the page is about, ideally including the phrase people search for. Use H2 and H3 headings to structure the rest of the content.7. Make the site fastCompress images and use modern formats such as WebP.Load images below the fold only when they are needed.Remove unused scripts, fonts and plugins.Test with Google PageSpeed Insights and fix the biggest issues first.8. Work well on mobileGoogle primarily uses the mobile version of your site. Check that text is readable, buttons are easy to tap and nothing spills off the screen.9. Add structured dataStructured data (schema) helps search engines understand your business, services, articles and FAQs, and can make your results more eye-catching. Test it with Google's Rich Results Test.10. Link your pages togetherInternal links help visitors and search engines discover your content. Every important page should be reachable through your menu, footer or links from related pages. Pages nobody links to are hard to find.11. Use HTTPS and basic securityYour site should load securely over HTTPS with no mixed-content warnings, and keep error details hidden from visitors.12. Track and measureSet up Google Analytics and Google Search Console. Watch which pages get impressions and clicks, fix errors Search Console reports, and track the enquiries your site generates.CheckTool to usePages are indexedGoogle Search Console, URL InspectionSitemap is cleanSearch Console and Bing Webmaster ToolsOne site versionBrowser test of http, https, www and non-wwwSpeedGoogle PageSpeed InsightsStructured dataGoogle Rich Results TestTraffic and errorsGoogle Analytics and Search Console Next stepsWork through this list once, fix the biggest problems first, then review it every few months or after major changes to your site.We run technical SEO audits and fixes for business websites. See our SEO services and website development, or get a free consultation.