Answer
The `integrity` attribute contains cryptographic metadata that lets the browser verify a fetched script or stylesheet before using it. β’ It is written inside an elementβs opening tag. β’ The HTML Standard limits which elements may use it and which values are valid. β’ Browsers apply the attribute when they process the element or the resource it controls.
💡 Simple Example
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.8/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-sRIl4kxILFvY47J16cr9ZwB07vP4J8+LH7qKQnuqkuIAvNWLzeN8tE5YBujZqJLB" crossorigin="anonymous">
⚡ Quick Revision
Integrity lets the browser verify a fetched resource against trusted metadata.