Indexing is a crucial part of technical SEO. But what is indexing in technical SEO terms? It’s the way search engines catalog your content after crawling your site. If your content isn’t indexed, it won’t appear in search results, regardless of how optimized it is. Factors like crawl budget, canonical tags, site speed, and mobile usability affect indexing. Mastering it requires regular technical audits, sitemap management, and use of robots.txt effectively. When indexing is done right, it gives your technical SEO efforts real power by ensuring content is visible to search engines and users alike.