Keywords are the foundation of most SEO strategies, but the term is used in several ways that can cause confusion for founders new to the subject. Understanding what a keyword is in the context of search — and how the concept has evolved — helps founders approach content planning with a more useful mental model than simply trying to fit words into pages.

In SEO, a keyword is a word or phrase a person types into a search engine when looking for something. Each keyword represents an intention — to find information, a product, a service, or an answer. Targeting keywords means creating content designed to appear when someone searches for that term. Keywords vary in volume, competition, and specificity, and effective strategy typically involves a mix of broad terms and more specific longer phrases known as long-tail keywords.

Modern SEO thinking has moved beyond optimising for individual keywords toward understanding the topics and intent that underpin a cluster of related searches. Creating genuinely useful content that covers a topic thoroughly tends to outperform content engineered around a single phrase. Our guide to keyword research and content planning covers practical approaches for UK founders at different stages.