Ping attribute
- LSWhen used on an anchor, this attribute signifies that the browser should send a ping request the resource the attribute points to.
IE
- 5.5 - 10: Not supported
- 11: Not supported
Edge
- 12 - 16: Not supported
- 17 - 87: Supported
- 88: Supported
Firefox
- 2: Not supported
- 3 - 84: Disabled by default
- 85: Disabled by default
- 86 - 87: Disabled by default
Chrome
- 4 - 14: Support unknown
- 15 - 87: Supported
- 88: Supported
- 89 - 91: Supported
Safari
- 3.1 - 5.1: Not supported
- 6 - 13.1: Supported
- 14: Supported
- TP: Supported
Opera
- 9 - 12.1: Not supported
- 15 - 72: Supported
- 73: Supported
iOS Safari
- 3.2 - 4.3: Not supported
- 5 - 13.7: Supported
- 14: Supported
Opera Mini
- all: Not supported
Android Browser
- 2.1 - 4.3: Not supported
- 4.4 - 4.4.4: Supported
- 81: Supported
Opera Mobile
- 10 - 12.1: Not supported
- 59: Supported
Chrome for Android
- 88: Supported
Firefox for Android
- 85: Disabled by default
UC Browser for Android
- 12.12: Supported
Samsung Internet
- 4 - 12.0: Supported
- 13.0: Supported
QQ Browser
- 10.4: Supported
Baidu Browser
- 7.12: Supported
KaiOS Browser
- 2.5: Disabled by default
While still in the WHATWG specification, this feature was removed from the W3C HTML5 specification in 2010.