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 - 121: Supported
  2. 122: Supported
  3. 123 - 125: Supported

Edge

  1. 12 - 120: Supported
  2. 121: Supported

Safari

  1. 3.1 - 4: Not supported
  2. 5 - 17.2: Supported
  3. 17.3: Supported
  4. 17.4 - TP: Supported

Firefox

  1. 2 - 3: Not supported
  2. 3.5 - 122: Partial support
  3. 123: Partial support
  4. 124 - 126: Partial support

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 105: Supported
  3. 106: Supported

IE

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

Chrome for Android

  1. 121: Supported

Safari on iOS

  1. 3.2 - 17.2: Support unknown
  2. 17.3: Support unknown
  3. 17.4: Support unknown

Samsung Internet

  1. 4: Support unknown
  2. 5 - 22: Supported
  3. 23: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Support unknown
  2. 73: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Support unknown
  2. 121: Support unknown

Firefox for Android

  1. 122: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported
Resources:
Controlling DNS prefetching
Prerender and prefetch support
What to <link rel=dns-prefetch> and when to use `preconnect` instead