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• 规范
• 浏览器兼容性
• 相关话题

dns-prefetch keyword for the rel 属性在 <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.

见 Using dns-prefetch 了解更多细节。

规范

规范	状态	注释
HTML 实时标准 The definition of 'dns-prefetch' in that specification.	实时标准

浏览器兼容性

The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
dns-prefetch 实验性	Chrome 完整支持 46	Edge 完整支持 ≤79	Firefox 完整支持 3	IE ?	Opera 完整支持 33	Safari ?	WebView Android 完整支持 46	Chrome Android 完整支持 Yes	Firefox Android 完整支持 4	Opera Android ?	Safari iOS ?	Samsung Internet Android 完整支持 Yes

图例

完整支持

完整支持

兼容性未知 ?

兼容性未知

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

元数据

• 最后修改： Apr 14, 2020