Can I use
?

Ping attribute

- LS

When used on an anchor, this attribute signifies that the browser should send a ping request the resource the attribute points to.

Chrome

  1. ﹖ 4 - 14: Support unknown
  2. ✅ 15 - 155: Supported
  3. ✅ 156: Supported
  4. ✅ 157 - 159: Supported

Edge

  1. ❌ 12 - 16: Not supported
  2. ✅ 17 - 154: Supported
  3. ✅ 155: Supported

Safari

  1. ❌ 3.1 - 5.1: Not supported
  2. ✅ 6 - 26.6: Supported
  3. ✅ 27: Supported
  4. ✅ 27.1 - TP: Supported

Firefox

  1. ❌ 2: Not supported
  2. ❌ 3 - 158: Disabled by default
  3. ❌ 159: Disabled by default
  4. ❌ 160 - 162: Disabled by default

Opera

  1. ❌ 9 - 12.1: Not supported
  2. ✅ 15 - 134: Supported
  3. ✅ 135: Supported

IE

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

Chrome for Android

  1. ✅ 156: Supported

Safari on iOS

  1. ❌ 3.2 - 4.3: Not supported
  2. ✅ 5 - 26.6: Supported
  3. ✅ 27.0: Supported
  4. ✅ 27.1 - 27.2: Supported

Samsung Internet

  1. ✅ 4 - 29: Supported
  2. ✅ 30: 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 - 4.3: Not supported
  2. ✅ 4.4 - 4.4.4: Supported
  3. ✅ 156: Supported

Firefox for Android

  1. ❌ 159: Disabled by default

QQ Browser

  1. ✅ 14.9: Supported

Baidu Browser

  1. ✅ 13.52: Supported

KaiOS Browser

  1. ❌ 2.5: Disabled by default
  2. ❌ 3: Disabled by default

While still in the WHATWG specification, this feature was removed from the W3C HTML5 specification in 2010.

Resources:
MDN Web Docs - Element ping attribute