Technical SEO Checklist: 50+ Points to Audit
A comprehensive technical SEO checklist covering everything from crawlability to Core Web Vitals. Use this guide to ensure your site is perfectly optimized.
Technical SEO forms the foundation of any successful search strategy. Without proper technical implementation, even the best content won't reach its potential. This comprehensive checklist covers everything you need to audit.
Crawlability & Indexation
Robots.txt Configuration
Your robots.txt file is the first thing search engine crawlers encounter. Ensure it's properly configured:
- β
File is accessible at
/robots.txt - β No critical pages are blocked
- β Sitemap location is specified
- β Different rules for different bots if needed
User-agent: *
Disallow: /admin/
Disallow: /private/
Allow: /
Sitemap: https://yoursite.com/sitemap.xml
XML Sitemap Best Practices
- β Sitemap is auto-generated and up-to-date
- β Only includes canonical, indexable URLs
- β Submitted to Google Search Console
- β Split into multiple sitemaps if over 50,000 URLs
Site Architecture
A well-structured site helps both users and search engines navigate your content efficiently.
URL Structure
| Good | Bad |
|---|---|
/blog/seo-guide | /p?id=123 |
/products/shoes/running | /cat/subcat/item |
/about-us | /page-about-company-info |
Internal Linking Strategy
Performance Optimization
Core Web Vitals Checklist
Largest Contentful Paint (LCP)- β Optimize and compress images
- β Use next-gen formats (WebP, AVIF)
- β Implement lazy loading below the fold
- β Preload critical resources
- β Use a CDN for static assets
- β Minimize JavaScript execution time
- β Break up long tasks
- β Use web workers for heavy computation
- β Optimize event handlers
- β Reserve space for ads and embeds
- β Use aspect-ratio CSS property
- β Avoid inserting content above existing content
- β Use transform animations instead of layout-triggering properties
Mobile Optimization
With mobile-first indexing, mobile optimization is non-negotiable:
- β Responsive design that works on all devices
- β Touch targets at least 48x48 pixels
- β Readable font sizes (minimum 16px)
- β No horizontal scrolling required
- β Fast mobile load times (< 3 seconds)
Schema Markup
Implement structured data to enhance search results:
{
"@context": "https://schema.org",
"@type": "Article",
"headline": "Your Article Title",
"author": {
"@type": "Person",
"name": "Author Name"
},
"datePublished": "2025-01-10",
"image": "https://example.com/image.jpg"
}
Essential Schema Types
- Organization
- LocalBusiness (if applicable)
- Article/BlogPosting
- Product (for e-commerce)
- FAQ
- HowTo
- BreadcrumbList
Security & HTTPS
- β Valid SSL certificate
- β All resources loaded over HTTPS
- β HTTP to HTTPS redirects in place
- β HSTS header implemented
- β No mixed content warnings
Conclusion
Technical SEO isn't a one-time taskβit requires ongoing monitoring and optimization. Use this checklist regularly to ensure your site remains in peak condition.
Need help with your technical SEO? Contact our team for a comprehensive audit of your website.
Marcus Chen
Technical SEO Lead at HeySEO. Expert in search engine optimization with 10+ years of experience helping businesses grow their organic traffic.
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