What is Technical SEO?

Technical SEO does not make a page rank; it removes the reasons a page cannot. A site with duplicate canonicals, blocked resources or a broken sitemap can publish excellent content indefinitely and never see it perform, because the content is either not indexed or is competing against three copies of itself.

The work divides into crawlability, indexability and interpretability. Crawlability is whether a bot can reach the page — internal links, sitemaps, robots directives, response codes. Indexability is whether it is allowed and worth storing — canonicals, noindex, duplicate handling. Interpretability is whether the engine can tell what the page is about — heading structure, structured data, semantic HTML.

For JavaScript applications there is a fourth concern: rendering. Google renders JavaScript but on a delay and a budget; most other crawlers, and most AI retrieval bots, do not render at all. Server-rendering the content and the structured data is what keeps a modern framework from quietly excluding itself from everything except Google.

Key points

• Removes blockers rather than creating ranking power
• Crawlability, indexability, interpretability, and rendering
• Canonicals and duplicate handling prevent self-competition
• Structured data makes page meaning explicit rather than inferred
• Server-rendered HTML is what non-Google crawlers actually read