rel=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

Specification
HTML Standard
# link-type-dns-prefetch

Browser compatibility

desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
rel=dns-prefetch

See also

  • Speculative loading for a comparison of <link rel="dns-prefetch"> and other similar performance improvement features.