Technical SEO is the foundation that all other SEO efforts build upon. Content and backlinks matter — but if Google cannot efficiently crawl, render, and index your site, none of it counts.
Core Web Vitals
Core Web Vitals are Google's user experience metrics that directly influence rankings:
- LCP (Largest Contentful Paint) — Time until the largest visible element loads. Target: under 2.5 seconds.
- INP (Interaction to Next Paint) — Responsiveness to user interactions. Target: under 200ms.
- CLS (Cumulative Layout Shift) — Visual stability. Target: under 0.1.
Use Google Search Console's Core Web Vitals report and PageSpeed Insights to measure your current scores against real user data.
Crawlability
Ensure Googlebot can reach all important pages. Check your robots.txt for unintended blocks. Verify that JavaScript-rendered content is indexable — use Google's URL Inspection Tool to see how Googlebot renders your pages. Submit an XML sitemap to Google Search Console.
Metadata and Semantic HTML
Every page needs a unique, descriptive title tag (50-60 characters) and meta description (150-160 characters). Use semantic HTML elements: h1 for the primary heading (one per page), article for blog posts, nav for navigation, main for the primary content area.
Structured Data
JSON-LD structured data helps Google understand your content and enables rich results in search. Implement Article schema for blog posts, FAQPage for FAQ sections, and LocalBusiness or Organization for your company information.
URL Structure
Use clean, descriptive URLs: /blog/sql-injection-prevention rather than /blog/post-12345. Keep URLs lowercase, use hyphens as separators, and avoid deep nesting beyond 3-4 levels.
Internal Linking
Internal links distribute PageRank and help Google understand your site architecture. Link to important pages from your homepage and high-traffic pages. Use descriptive anchor text that accurately describes the destination page.
HTTPS and Security
HTTPS is a confirmed ranking factor. Ensure your entire site is served over HTTPS, that all internal links use HTTPS, and that your SSL certificate is valid and not expiring. Use HSTS to prevent protocol downgrade attacks.
Conclusion
Work through this checklist systematically using Google Search Console, PageSpeed Insights, and a crawl tool like Screaming Frog. Fix issues in order of impact: Core Web Vitals and crawlability problems take priority, followed by structured data and internal linking improvements.