Technical Definition
Web components are custom, reusable HTML elements created with JavaScript. Include Shadow DOM, Custom Elements, and HTML Templates. SEO consideration: content inside Shadow DOM may not be indexed well. Ensure critical content is in Light DOM or use declarative Shadow DOM. Test indexability.
Simple Explanation (ELI13)
Web components let developers create custom HTML elements. The issue for SEO is that content inside Shadow DOM (a web component feature) might not be seen by Google. Put important content outside Shadow DOM or test carefully to make sure it gets indexed.
Related Terms
JavaScript SEO, Shadow DOM, Custom Elements, Rendering
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