Core Web Vitals are measurements that search engines use to judge how comfortable a page feels when someone visits it. They look at three main things. First is how fast the main content appears. Second is how quickly the page reacts when a visitor clicks or scrolls. Third is whether the layout moves around while loading. If a page loads slowly or jumps while reading, visitors may leave early. Search engines notice this behavior and may rank the page lower. Keeping pages stable and fast can help both readers and rankings. Do these page experience signals really affect search results?