Article
The Complete Technical SEO Checklist
Technical SEO makes sure search engines can crawl, render, index and trust your site. Without it, even great content struggles to rank. Work through this checklist — it’s the foundation everything else builds on.
Key takeaways
- If search engines can’t crawl and index you, nothing else matters.
- Speed and mobile-friendliness are ranking factors.
- Structured data earns rich results and helps AI understand your pages.
- Clean structure and internal links direct ranking power to key pages.
Crawling & indexing
- XML sitemap submitted to Google and Bing
- robots.txt correct — nothing important blocked
- Canonical tags on every page
- No accidental noindex on key pages
- Fix crawl errors in Search Console
Speed & rendering
- Pass Core Web Vitals (LCP, INP, CLS)
- Server-rendered, fast HTML
- Optimised images and caching
- No render-blocking scripts
Structure & data
- Logical URL structure and internal links
- Structured data (schema) for rich results
- One clear H1 and proper heading hierarchy per page
- Breadcrumbs with schema
Mobile & security
- Mobile-first, responsive design
- HTTPS everywhere and security headers
- No intrusive interstitials on mobile
Frequently asked questions
- What is the most important technical SEO factor?
- Making sure your important pages can be crawled and indexed, and that the site is fast on mobile.
- Can you do technical SEO for me?
- Yes — it’s part of our SEO services and website audit.
Related reading & services
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