Encyclopedia of Terms AllABCDEFGHIJKLMNOPQRSTUVWXYZ Y Y-Axis In data visualization, the vertical axis of a chart; used in analytics dashboards to represent... Learn More → Year-Over-Year (YoY) Growth A metric comparing performance from one year to the next, commonly used in web analytics... Learn More → Yield Optimization The process of maximizing ad or content revenue through A/B testing, better placement, and data-driven... Learn More → YouTube Embed The process of inserting a YouTube video into a webpage or WordPress post using an... Learn More →