SEO (Search Engine Optimization)
The practice of earning more relevant traffic from search engines by making a site easier to crawl, index, understand and trust.
SEO is the ongoing practice of making a website more visible in the unpaid, organic results of search engines like Google and Bing. It breaks down into three loosely-related jobs: technical SEO (making sure engines can crawl and index your pages), on-page SEO (making each page clearly about a topic people actually search for), and off-page SEO (earning links and mentions that signal the site is credible).
None of it is a trick. Modern search engines reward pages that genuinely answer the query behind a search better than the alternatives, and they demote pages that exist only to rank. The durable version of SEO is therefore mostly about clarity and quality: a fast, crawlable site with unique, useful pages that real people find and link to.
SEO is a compounding, months-long process, not a switch you flip. The fastest way to lose the compounded gains is a single careless mistake at scale — which is exactly the failure mode a safety linter is meant to catch before it ships.
Related terms
- Core Update — A broad, periodic change to Google's ranking systems. Rankings shift site-wide; recovery comes from improving overall quality.
- E-E-A-T (Experience, Expertise, Authoritativeness, Trust) — Google's quality framework: content should show real experience, expertise, authority and trust. Not a score, but a lens.
- GEO (Generative Engine Optimization) — Improving how often generative AI answers (ChatGPT, Perplexity, Gemini) cite your site. Visibility is measured, not bought.
- Indexing — Storing a crawled page in a search engine's index so it can appear in results. Crawled is not the same as indexed.