This story was originally published on HackerNoon at: https://hackernoon.com/declarative-shadow-dom-the-magic-pill-for-server-side-rendering-and-web-components. Discover how to use Shadow DOM for server-side rendering to improve web performance and SEO. Check more stories related to programming at: https://hackernoon.com/c/programming. You can also check exclusive content about #server-side-rendering, #shadow-dom, #web-components, #declarative-shadow-dom, #static-html, #web-component-styling, #web-performance-optimization, #imperative-api-shadow-dom, and more. This story was written by: @pradeepin2. Learn more about this writer by checking @pradeepin2's about page, and for more stories, please visit hackernoon.com. Shadow DOM is a web standard enabling encapsulation of DOM subtrees in web components. It allows developers to create isolated scopes for CSS and JavaScript within a document, preventing conflicts with other parts of the page. Shadow DOM's key feature is its "shadow root," serving as a boundary between the component's internal structure and the rest of the document.