# The Ultimate 30-Point Technical SEO & Core Web Vitals Audit Checklist for 2026 Engineering an authoritative web application requires a bulletproof technical foundation. This 30-point audit checklist created by **Itoby Infotech Pvt Ltd (IIPL)** covers essential search engine optimization standards. --- ## Core Technical Audit Items: 1. **Self-Referencing Canonical URLs**: Ensure every page specifies an exact 200 OK canonical tag without trailing slash redirects. 2. **Core Web Vitals LCP < 1.2s**: Prioritize above-the-fold image loading and inline critical CSS. 3. **Core Web Vitals INP < 50ms**: Defer non-critical JavaScript execution using React transitions and web workers. 4. **Single H1 Headline per Page**: Maintain a strict hierarchical heading structure (H1 → H2 → H3). 5. **AI Bot Access in Robots.txt**: Explicitly permit crawlers like `GPTBot`, `ChatGPT-User`, `ClaudeBot`, and `PerplexityBot`. 6. **Valid Schema.org Graphs**: Inject `Organization`, `Service`, `FAQPage`, and `BreadcrumbList` JSON-LD scripts. Read the full resource guide at [Technical SEO Checklist 2026](/resources/technical-seo-checklist-2026).

The Ultimate 30-Point Technical SEO & Core Web Vitals Audit Checklist for 2026

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