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 - 89: Supported
  2. 90: Supported

Firefox

  1. 2 - 3: Not supported
  2. 3.5 - 87: Partial support
  3. 88: Partial support
  4. 89 - 90: Partial support

Chrome

  1. 4 - 89: Supported
  2. 90: Supported
  3. 91 - 93: Supported

Safari

  1. 3.1 - 4: Not supported
  2. 5 - 14: Supported
  3. 14.1: Supported
  4. TP: Supported

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 74: Supported
  3. 75: Supported

Safari on iOS

  1. 3.2 - 14.4: Support unknown
  2. 14.5: Support unknown

Opera Mini

  1. all: Not supported

Android Browser

  1. 2.1 - 4.4.4: Support unknown
  2. 90: Support unknown

Opera Mobile

  1. 10 - 12.1: Support unknown
  2. 62: Support unknown

Chrome for Android

  1. 90: Supported

Firefox for Android

  1. 87: Supported

UC Browser for Android

  1. 12.12: Support unknown

Samsung Internet

  1. 4: Support unknown
  2. 5 - 13.0: Supported
  3. 14.0: 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