Security1 min read
Content Security Policy (CSP): Complete Guide
Understand Content Security Policy, common directives, reporting, deployment strategies, and mistakes that can break legitimate website resources.
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The Site Vitals Blog
Explore expert articles, step-by-step guides, and developer-centric tutorials on Core Web Vitals, page speed optimization, security headers, accessibility standard compliance, and technical SEO diagnostics.
Security1 min read
HTTP Security Headers: Complete Guide
Learn what HTTP security headers do and how headers such as CSP, HSTS, X-Content-Type-Options, and frame protections improve browser security.
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Canonical URLs Explained: How to Fix Duplicate Content
Understand canonical URLs, duplicate and near-duplicate pages, common canonical mistakes, and how to implement canonical tags correctly.
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XML Sitemap SEO: Complete Guide
Learn what XML sitemaps do, which URLs belong in them, common sitemap errors, and how to keep your sitemap useful for search engines.
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Robots.txt Explained: Complete SEO Guide
Learn how robots.txt works, what it can and cannot do, common mistakes, and how to create a crawler-friendly robots.txt file.
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What Is INP? How to Improve Interaction to Next Paint
Understand Interaction to Next Paint and learn how JavaScript, long tasks, event handlers, and third-party scripts can affect responsiveness.
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What Is CLS? How to Fix Cumulative Layout Shift
Understand Cumulative Layout Shift and learn how to prevent unexpected movement caused by images, ads, fonts, dynamic content, and layout changes.
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What Is LCP? How to Improve Largest Contentful Paint
Learn what Largest Contentful Paint means, what affects LCP, how to diagnose slow LCP, and practical ways to improve it.
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Technical SEO Audit: Complete Checklist for 2026
A practical technical SEO audit checklist covering crawling, indexing, redirects, canonical URLs, sitemaps, robots.txt, performance, mobile usability, and security.