Technical SEO Checklist for Search and AI Discovery

Technical SEO improves how search engines crawl, render, understand, index, and serve a website. It covers architecture, status codes, canonicals, robots controls, sitemaps, structured data, JavaScript rendering, performance, mobile usability, and related infrastructure.

Prioritize issues that block discovery, indexing, rendering, or conversion across important templates. A widespread canonical or noindex error normally deserves attention before an isolated warning on a low-value URL.

Check the live URL status, robots directives, canonical, rendered content, internal links, XML sitemap inclusion, and Google Search Console URL Inspection data. A page being crawlable does not automatically mean it is indexable or worth indexing.

Crawling is the process of discovering and requesting a URL. Indexing is the decision to process and store that page for possible retrieval. A crawler can visit a page that is later excluded, canonicalized, or judged unhelpful for the index.

Sitemaps do not directly raise rankings. They help search engines discover preferred canonical URLs and understand update signals, especially on large, new, frequently changing, or weakly linked websites.

Treat them as part of user experience and template quality. Start with field data, identify the affected templates and LCP, INP, or CLS causes, then fix shared components before optimizing isolated pages.

Audit JavaScript when important content, links, metadata, or structured data depend on client-side rendering, when rendered HTML differs from the source, or when crawling and indexing problems appear on JavaScript-heavy templates.

Monitor critical signals continuously and run structured audits after releases, migrations, redesigns, platform changes, or unexplained performance shifts. A broader audit every quarter or six months is common, depending on site complexity.