Canonical URLs, robots.txt, sitemap optimization, metadata, Open Graph, JSON-LD, crawlability, rendering, and internal linking — practical references paired with free browser tools.
Each topic links to a practical guide and the matching free tool so you can check your own pages — no upload, no backend.
60+ item operational checklist organized by category — crawlability, canonicals, metadata, structured data, links, Core Web Vitals, AI visibility.
Read the complete guide →RFC 6596 reference, parameter URLs, cross-domain canonicals, common mistakes, validation workflow.
Read the complete guide →The sitemaps.org protocol, lastmod accuracy, image/video extensions, sitemap index files, common errors.
Read the complete guide →RFC 9309 protocol, the four directives, AI crawler control patterns, validation, what robots.txt is NOT.
Read the complete guide →schema.org types, decision tree, the three-layer model (syntax / eligibility / display), validation workflow, anti-patterns.
Read the complete guide →Crawl graph, hub-and-spoke and pillar-cluster patterns, anchor text discipline, orphan detection, AI-visibility considerations.
Read the complete guide →Consolidate duplicates correctly.
Open →Clean URLs, lastmod, HTTPS.
Open →Reliable social previews.
Open →Valid structured data.
Open →Useful page summaries.
Open →Static-first access.
Open →Strengthen the crawl graph.
Open →Everything together.
Open →Related: guides · technical SEO · AI search · integrations · tools · docs · WebmasterID.