Can I use
?

headers HTTP header: Expect-CT

IE

  1. 6 - 10: Not supported
  2. 11: Not supported

Edge

  1. 12 - 108: Supported
  2. 109: Supported

Firefox

  1. 2 - 108: Not supported
  2. 109: Not supported
  3. 110 - 111: Not supported

Chrome

  1. 4 - 60: Not supported
  2. 61 - 108: Supported
  3. 109: Supported
  4. 110 - 112: Supported

Safari

  1. 3.1 - 16.2: Not supported
  2. 16.3: Not supported
  3. TP: Support unknown

Opera

  1. 10 - 47: Not supported
  2. 48 - 91: Supported
  3. 92: Supported

Safari on iOS

  1. 3.2 - 16.2: Not supported
  2. 16.3: Not supported

Opera Mini

  1. all: Support unknown

Android Browser

  1. 2.1 - 4.4.4: Not supported
  2. 109: Not supported

Opera Mobile

  1. 12 - 12.1: Not supported
  2. 72: Supported

Chrome for Android

  1. 109: Supported

Firefox for Android

  1. 107: Not supported

UC Browser for Android

  1. 13.4: Support unknown

Samsung Internet

  1. 4 - 7.4: Not supported
  2. 8.2 - 18.0: Supported
  3. 19.0: Supported

QQ Browser

  1. 13.1: Support unknown

Baidu Browser

  1. 13.18: Support unknown

KaiOS Browser

  1. 2.5: Support unknown