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 - 156: Supported
  2. ✅ 157: Supported
  3. ✅ 158 - 160: Supported

Edge

  1. ✅ 12 - 155: Supported
  2. ✅ 156: Supported

Safari

  1. ❌ 3.1 - 4: Not supported
  2. ✅ 5 - 27.1: Supported
  3. ✅ 27.2: Supported
  4. ✅ 27.3 - TP: Supported

Firefox

  1. ❌ 2 - 3: Not supported
  2. ◐ 3.5 - 126: Partial support
  3. ✅ 127 - 158: Supported
  4. ✅ 159: Supported
  5. ✅ 160 - 162: Supported

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ✅ 15 - 138: Supported
  3. ✅ 139: Supported

IE

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

Chrome for Android

  1. ✅ 157: Supported

Safari on iOS

  1. ﹖ 3.2 - 18.7: Support unknown
  2. ✅ 26.0 - 26.6: Supported
  3. ✅ 27.0: Supported
  4. ✅ 27.1 - 27.2: Supported

Samsung Internet

  1. ﹖ 4: Support unknown
  2. ✅ 5 - 30: Supported
  3. ✅ 31: Supported

Opera Mini

  1. ❌ all: Not supported

Opera Mobile

  1. ﹖ 10 - 12.1: Support unknown
  2. ✅ 80: Supported

UC Browser for Android

  1. ✅ 15.5: Supported

Android Browser

  1. ﹖ 2.1 - 4.4.4: Support unknown
  2. ﹖ 157: Support unknown

Firefox for Android

  1. ✅ 159: Supported

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: 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