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/">

IE

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

Edge

  1. 12 - 84: Supported
  2. 85: Supported

Firefox

  1. 2 - 3: Not supported
  2. 3.5 - 79: Partial support
  3. 80: Partial support
  4. 81 - 82: Partial support

Chrome

  1. 4 - 84: Supported
  2. 85: Supported
  3. 86 - 88: Supported

Safari

  1. 3.1 - 4: Not supported
  2. 5 - 13.1: Supported
  3. 14: Supported
  4. TP: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 69: Supported
  3. 70: Supported

iOS Safari

  1. 3.2 - 13.7: Support unknown
  2. 14.0: Support unknown

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Support unknown
  2. 81: Support unknown

Blackberry Browser

  1. 7: Support unknown
  2. 10: Support unknown

Opera Mobile

  1. 10 - 12.1: Support unknown
  2. 46: Support unknown

Chrome for Android

  1. 85: Supported

Firefox for Android

  1. 79: Supported

IE Mobile

  1. 10: Not supported
  2. 11: Supported

UC Browser for Android

  1. 12.12: Support unknown

Samsung Internet

  1. 4: Support unknown
  2. 5 - 11.2: Supported
  3. 12.0: Supported

QQ Browser

  1. 10.4: Supported

Baidu Browser

  1. 7.12: 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