RankWiki

Technical SEO

Technical SEO is the practice of optimizing a website’s infrastructure so search engines can crawl, render, index, and understand its pages efficiently.

This section covers the technical foundation of SEO: crawl control, indexation, site speed, structured data, and site architecture. It includes 240 entries on topics such as robots.txt, sitemaps, canonical tags, redirects, status codes, JavaScript rendering, Core Web Vitals, schema markup, hreflang, migrations, and security.

It does not cover content strategy, link building, or on-page copywriting — those belong in separate sections. The focus here is purely on how search engines access and process your site.

A newcomer should start with the basics: robots.txt and sitemaps to control crawling, then canonical tags and redirects to manage indexation. After that, explore Core Web Vitals for performance and schema for structured data.

Start here

All 240 entries

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Other sections

SEO Basics How search engines find, rank and show pages — and the vocabulary behind it. 84 entries Keyword Research Finding, judging and grouping the queries a page should answer. 128 entries On-Page & Content SEO What goes on the page: titles, headings, copy, media and internal links. 173 entries Links & Authority How links are earned, measured, valued and devalued. 76 entries SEO Tools & Analytics Neutral reference entries for the platforms, and how to measure results. 192 entries SEO in Practice SEO applied to a place, a storefront, a platform or a job. 268 entries

Written and maintained by Nora Lindholm. Last updated 27 July 2026.

Spotted an error? Email me — corrections are logged and credited on the entry. Outbound links are unpaid; most are nofollow.