This document discusses user experience and accessibility and their importance for SEO. It defines accessibility as ensuring websites can be used by people with disabilities. Around 17% of the population has a disability. Inaccessible websites can negatively impact a business by narrowing their target market, losing revenue, and damaging their brand reputation. The document outlines the WCAG guidelines for accessible websites and common accessibility issues. It describes how user experience provides answers users need quickly on accessible sites across devices. Core web vitals like page load speed and layout shifts impact the user experience and SEO. The document recommends testing tools to evaluate accessibility.