220 292 sites are using this notification
| From | To | |
| Chrome | Chrome | 40629669 |
| Chrome | Firefox | 6086507 |
| IE/Edge | Chrome | 4699955 |
| Firefox | Firefox | 3518508 |
| IE/Edge | Firefox | 2533408 |
| IE/Edge | IE/Edge | 2056538 |
| Safari | Safari | 1715349 |
| Safari | Chrome | 980507 |
| Chrome | Opera | 753509 |
| Safari | Firefox | 590223 |
| Firefox | Chrome | 532672 |
| Other | Chrome | 411800 |
| IE/Edge | Opera | 402393 |
| Opera | Opera | 314911 |
| Other | Firefox | 206447 |
| Chrome | IE/Edge | 196449 |
| Opera | Chrome | 112070 |
| Safari | Opera | 104174 |
| Firefox | Opera | 104123 |
| Other | Opera | 101477 |
| Opera | Firefox | 96001 |
| Other | Safari | 50659 |
| Firefox | IE/Edge | 42982 |
| Other | IE/Edge | 37113 |
| IE/Edge | Safari | 26816 |
| Safari | IE/Edge | 13646 |
| Opera | IE/Edge | 13473 |
| Chrome | Safari | 11878 |
| Firefox | Safari | 11013 |