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 - 116: Supported
  3. 117: Supported
  4. 118 - 120: Supported

Edge

  1. 12 - 16: Not supported
  2. 17 - 116: Supported
  3. 117: Supported

Safari

  1. 3.1 - 5.1: Not supported
  2. 6 - 16.5: Supported
  3. 16.6: Supported
  4. 17.0 - TP: Supported

Firefox

  1. 2: Not supported
  2. 3 - 116: Disabled by default
  3. 117: Disabled by default
  4. 118 - 120: Disabled by default

Opera

  1. 9 - 12.1: Not supported
  2. 15 - 101: Supported
  3. 102: Supported

IE

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

Chrome for Android

  1. 117: Supported

Safari on iOS

  1. 3.2 - 4.3: Not supported
  2. 5 - 16.6: Supported
  3. 17.0: Supported
  4. 17.1: Supported

Samsung Internet

  1. 4 - 21: Supported
  2. 22: Supported

Opera Mini

  1. all: Not supported

Opera Mobile

  1. 10 - 12.1: Not supported
  2. 73: 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. 117: Supported

Firefox for Android

  1. 117: Disabled by default

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: 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