Technical SEO Checklist: Complete Technical SEO Audit Guide
Technical SEO is the foundation of all search visibility. Without a solid technical base, even the best content will struggle to rank. This checklist covers every critical technical element you need to audit and optimize.
Crawlability & Indexing
- robots.txt is properly configured and not blocking important pages
- XML sitemap exists, is up to date, and is submitted to Google Search Console
- No important pages are accidentally set to
noindex - Crawl budget is managed efficiently — block low-value pages from crawling
- Internal linking creates clear pathways to all important content
Site Speed & Performance
- Server response time (TTFB) is under 200ms
- GZIP or Brotli compression is enabled on all text-based resources
- Images are compressed and served in modern formats (WebP, AVIF)
- CSS and JavaScript are minified and deferred where possible
- Browser caching headers are set with appropriate expiration times
- A CDN is used to serve static assets from edge locations
HTTPS & Security
- Valid SSL/TLS certificate is installed and all pages load over HTTPS
- HTTP-to-HTTPS redirects are in place (no mixed content)
- Security headers are configured: HSTS, X-Content-Type-Options, X-Frame-Options, CSP
URL Structure & Redirects
- URLs are clean, descriptive, and use hyphens (not underscores)
- Canonical tags are set on every page to prevent duplicate content issues
- 301 redirects are in place for any changed or removed URLs
- No redirect chains or loops exist
- Trailing slash usage is consistent across the site
Mobile & Accessibility
- Viewport meta tag is correctly set for responsive design
- Content passes Google's Mobile-Friendly Test
- Touch targets are at least 48x48 pixels with adequate spacing
- Semantic HTML is used throughout (header, nav, main, article, footer)
- ARIA labels are present where needed for screen readers
Structured Data & Schema
- JSON-LD structured data is present on all key pages
- Schema types match page content (Article, Product, LocalBusiness, etc.)
- Markup validates in Google's Rich Results Test
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Manually checking every item on this list takes hours. AuditX automates the entire technical SEO audit process, scanning your site across all these categories and providing prioritized, actionable fix recommendations in minutes.