This document defines common terms related to e-commerce, analytics, and search engine optimization. It includes definitions for things like analytics tools, apps, banners ads, blogs, browsers, click-through rates, content, conversions, keywords, landing pages, links, mobile devices, organic listings, paid listings, queries, rankings, search engines, SEM, SERPs, sessions, social media, traffic acquisition, unique visitors, and URLs. The document provides definitions for over 30 technical terms used in online marketing, analytics, and search engine optimization.