What is SEO (Search Engine Optimization)?
Definition
The practice of improving a website's visibility in organic search engine results through on-page content, technical structure, and backlink acquisition. Effective SEO drives sustainable traffic without per-click costs.
Related Terms
An advertising model where the advertiser pays a fee each time someone clicks their ad. Google Ads and Meta Ads are the two largest PPC platforms, and campaign success is measured by CPC, CTR, and ROAS.
The percentage of people who click on a link, ad, or CTA relative to the total number who see it. A higher CTR typically indicates stronger ad creative, more relevant targeting, or better meta titles in organic search.
The percentage of visitors who complete a desired action, such as signing up, purchasing, or requesting a demo. Conversion rate optimization (CRO) uses testing and UX improvements to increase this number without additional traffic.