L2
Semantic HTML
HTML that uses meaningful tags (e.g. article, section, h1) to convey the structure and meaning of content to both browsers and crawlers.
Semantic HTML is the foundation of machine-readable content. Correct use of h1–h6, article, section, nav, and main makes it easier for search engines and AI models to understand content hierarchy and identify the most important parts of a page.
This term is part of the 3LA EntityMap → /entitymap.html
Related terms
Crawlability
L2The ability of search engine and AI crawlers to access and index a website's content. JavaScript-heavy pages often have poor crawlability.
Schema Markup
L2Machine-readable code (JSON-LD using Schema.org vocabulary) added to web pages to help search engines and AI models understand content meaning and context.
Technical SEO
L2The practice of optimizing website infrastructure – crawlability, indexability, site speed, and mobile-friendliness – to improve search engine rankings.
