Technical SEO Checklist: 25 Must-Fix Issues for Better Rankings

Why Technical SEO Is the Foundation

You can have the best content in the world, but if Google can't properly crawl, index, and understand your site, you won't rank. Technical SEO ensures your site's infrastructure supports your content goals.

Crawlability & Indexation

• ✅ XML sitemap submitted to Google Search Console
• ✅ Robots.txt properly configured
• ✅ No orphan pages (every page linked from at least one other page)
• ✅ Canonical tags on all pages
• ✅ No duplicate content issues
• ✅ 301 redirects for changed URLs

Site Speed & Performance

• ✅ LCP under 2.5 seconds
• ✅ INP under 200ms
• ✅ CLS under 0.1
• ✅ Images optimized (WebP format, lazy loading)
• ✅ CSS and JavaScript minified
• ✅ CDN configured for global delivery

On-Page Technical Elements

• ✅ Unique title tags (under 60 characters)
• ✅ Meta descriptions (under 160 characters)
• ✅ Proper heading hierarchy (single H1, logical H2-H6)
• ✅ Alt text on all images
• ✅ Internal linking structure
• ✅ Schema markup (Organization, LocalBusiness, Article, FAQ)

Mobile Optimization

• ✅ Responsive design across all devices
• ✅ No horizontal scrolling on mobile
• ✅ Touch targets at least 48x48px
• ✅ Font size readable without zooming (16px+ body)

Security & Trust

• ✅ HTTPS everywhere (no mixed content)
• ✅ SSL certificate valid and properly configured
• ✅ Security headers (HSTS, CSP, X-Frame-Options)

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