171 512 sites are using this notification
| From | To | |
| Chrome | Chrome | 19883838 |
| IE/Edge | Chrome | 3753570 |
| Chrome | Firefox | 3700397 |
| Firefox | Firefox | 2516827 |
| IE/Edge | Firefox | 2229196 |
| IE/Edge | IE/Edge | 2056538 |
| Safari | Chrome | 711583 |
| Chrome | Opera | 649916 |
| Safari | Safari | 525552 |
| Safari | Firefox | 492683 |
| Other | Chrome | 411800 |
| Firefox | Chrome | 378494 |
| IE/Edge | Opera | 363007 |
| Opera | Opera | 237820 |
| Other | Firefox | 206447 |
| Chrome | IE/Edge | 196449 |
| Other | Opera | 101477 |
| Safari | Opera | 94110 |
| Firefox | Opera | 85590 |
| Opera | Firefox | 77041 |
| Opera | Chrome | 76451 |
| 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 |