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Link types.dns-prefetch

The dns-prefetch keyword for the rel attribute of the <link> element is a hint to browsers that the user is likely to need resources from the target resource's origin, and therefore the browser can likely improve the user experience by preemptively performing DNS resolution for that origin.

See Using dns-prefetch for more details.

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
dns-prefetch 46 ≤79 3 ? 33 ?
Mobile
Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
dns-prefetch 46 Yes 4 ? ? Yes

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https://developer.mozilla.org/en-US/docs/Web/HTML/Link_types/dns-prefetch