Resource Hints: preload

- CR

Using <link rel="preload">, browsers can be informed to prefetch resources without having to execute them, allowing fine-grained control over when and how resources are loaded. Only the following as values are supported: fetch, image, font, script, style, track.

Chrome

  1. 4 - 49: Not supported
  2. 50 - 125: Supported
  3. 126: Supported
  4. 127 - 129: Supported

Edge

  1. 12 - 16: Not supported
  2. 17 - 18: Partial support
  3. 79 - 124: Supported
  4. 125: Supported

Safari

  1. 3.1 - 10.1: Not supported
  2. 11: Disabled by default
  3. 11.1 - 17.4: Supported
  4. 17.5: Supported
  5. 17.6 - TP: Supported

Firefox

  1. 2 - 55: Not supported
  2. 56: Partial support
  3. 57 - 84: Disabled by default
  4. 85 - 126: Supported
  5. 127: Supported
  6. 128 - 130: Supported

Opera

  1. 9 - 36: Not supported
  2. 37 - 109: Supported
  3. 110: Supported

IE

  1. 5.5 - 10: Not supported
  2. 11: Not supported

Chrome for Android

  1. 125: Supported

Safari on iOS

  1. 3.2 - 10.3: Not supported
  2. 11: Disabled by default
  3. 11.3 - 17.4: Supported
  4. 17.5: Supported
  5. 17.6 - 18.0: Supported

Samsung Internet

  1. 4: Not supported
  2. 5 - 24: Supported
  3. 25: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 80: Supported

UC Browser for Android

  1. 15.5: Supported

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 125: Supported

Firefox for Android

  1. 126: Supported

QQ Browser

  1. 14.9: Supported

Baidu Browser

  1. 13.52: Supported

KaiOS Browser

  1. 2.5: Not supported
  2. 3: Not supported
Resources:
Firefox meta support bug
MDN Web Docs - Preloading content with rel="preload"
Preload: What Is It Good For?