Resource Hints: dns-prefetch

- WD

Gives a hint to the browser to perform a DNS lookup in the background to improve performance. This is indicated using <link rel="dns-prefetch" href="https://example.com/">

Chrome

  1. 4 - 107: Supported
  2. 108: Supported
  3. 109 - 111: Supported

Edge

  1. 12 - 106: Supported
  2. 107: Supported

Safari

  1. 3.1 - 4: Not supported
  2. 5 - 16.0: Supported
  3. 16.1: Supported
  4. 16.2 - TP: Supported

Firefox

  1. 2 - 3: Not supported
  2. 3.5 - 106: Partial support
  3. 107: Partial support
  4. 108 - 109: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 91: Supported
  3. 92: Supported

IE

  1. 5.5 - 8: Not supported
  2. 9: Partial support
  3. 10: Supported
  4. 11: Supported

Chrome for Android

  1. 107: Supported

Safari on iOS

  1. 3.2 - 16.0: Support unknown
  2. 16.1: Support unknown

Samsung Internet

  1. 4: Support unknown
  2. 5 - 18.0: Supported
  3. 19.0: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Support unknown
  2. 72: Supported

UC Browser for Android

  1. 13.4: Supported

Android Browser

  1. 2.1 - 4.4.4: Support unknown
  2. 107: Support unknown

Firefox for Android

  1. 106: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Supported
Resources:
Controlling DNS prefetching
Prerender and prefetch support
What to <link rel=dns-prefetch> and when to use `preconnect` instead