rel="dns-prefetch"
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
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 # link-type-dns-prefetch |
Browser compatibility
See also
- Speculative loading for a comparison of
<link rel="dns-prefetch">and other similar performance improvement features.