171 306 sites are using this notification
| From | To | |
| Chrome | Chrome | 19812255 |
| IE/Edge | Chrome | 3748118 |
| Chrome | Firefox | 3693071 |
| Firefox | Firefox | 2512505 |
| IE/Edge | Firefox | 2227675 |
| IE/Edge | IE/Edge | 2056538 |
| Safari | Chrome | 710826 |
| Chrome | Opera | 649605 |
| Safari | Safari | 523915 |
| Safari | Firefox | 492377 |
| Other | Chrome | 411800 |
| Firefox | Chrome | 377933 |
| IE/Edge | Opera | 362839 |
| Opera | Opera | 237623 |
| Other | Firefox | 206447 |
| Chrome | IE/Edge | 196449 |
| Other | Opera | 101477 |
| Safari | Opera | 94093 |
| Firefox | Opera | 85503 |
| Opera | Firefox | 76987 |
| Opera | Chrome | 76366 |
| Other | Safari | 50659 |
| Firefox | IE/Edge | 42982 |
| Other | IE/Edge | 37113 |
| IE/Edge | Safari | 26769 |
| Safari | IE/Edge | 13646 |
| Opera | IE/Edge | 13473 |
| Chrome | Safari | 11815 |
| Firefox | Safari | 10998 |