181 312 sites are using this notification
| From | To | |
| Chrome | Chrome | 25205187 |
| Chrome | Firefox | 4264654 |
| IE/Edge | Chrome | 4086519 |
| Firefox | Firefox | 2799665 |
| IE/Edge | Firefox | 2337170 |
| IE/Edge | IE/Edge | 2056538 |
| Safari | Chrome | 754074 |
| Chrome | Opera | 668884 |
| Safari | Safari | 584963 |
| Safari | Firefox | 510722 |
| Firefox | Chrome | 418206 |
| Other | Chrome | 411800 |
| IE/Edge | Opera | 372554 |
| Opera | Opera | 250465 |
| Other | Firefox | 206447 |
| Chrome | IE/Edge | 196449 |
| Other | Opera | 101477 |
| Safari | Opera | 95949 |
| Firefox | Opera | 90842 |
| Opera | Chrome | 85558 |
| Opera | Firefox | 81966 |
| Other | Safari | 50659 |
| Firefox | IE/Edge | 42982 |
| Other | IE/Edge | 37113 |
| IE/Edge | Safari | 26784 |
| Safari | IE/Edge | 13646 |
| Opera | IE/Edge | 13473 |
| Chrome | Safari | 11833 |
| Firefox | Safari | 11006 |