Can I use
?

Push API

- WD

API to allow messages to be pushed from a server to a browser, even when the site isn't focused or even open in the browser.

Chrome

  1. 4 - 43: Not supported
  2. 44 - 49: Partial support
  3. 50 - 116: Supported
  4. 117: Supported
  5. 118 - 120: Supported

Edge

  1. 12 - 16: Not supported
  2. 17 - 18: Supported
  3. 79 - 116: Supported
  4. 117: Supported

Safari

  1. 3.1 - 6.1: Not supported
  2. 7 - 16.0: Not supported
  3. 16.1 - 16.5: Partial support
  4. 16.6: Partial support
  5. 17.0 - TP: Partial support

Firefox

  1. 2 - 43: Not supported
  2. 44: Supported
  3. 45: Supported
  4. 46 - 51: Supported
  5. 52: Supported
  6. 53 - 59: Supported
  7. 60: Supported
  8. 61 - 116: Supported
  9. 117: Supported
  10. 118 - 120: Supported

Opera

  1. 9 - 36: Not supported
  2. 37 - 41: Support unknown
  3. 42 - 101: Supported
  4. 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 - 16.3: Not supported
  2. 16.4 - 16.6: Partial support
  3. 17.0: Partial support
  4. 17.1: Partial support

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 - 4.4.4: Not supported
  2. 117: Not supported

Firefox for Android

  1. 117: Supported

QQ Browser

  1. 13.1: Supported

Baidu Browser

  1. 13.18: Not supported

KaiOS Browser

  1. 2.5: Supported
  2. 3: Supported
Resources:
MDN Web Docs - Push API
Google Developers article