You can attach an image or an icon to your web push notification.
Learn what sizes work best:
Icon size: 196x196
- Minimum – 512×256
- Optimum – 1024×512
- Maximum – 2048×1024
The correct ratio is 1:1.5, or 360*240 and ratio: 1.5:1.
The version that is most recommended for desktop devices is 360* 40 and the ratio: 1.5:1, while mobile browsers use 2: 1 and 512 × 256 upwards.
To achieve the best results, we recommend that you send separate campaigns for different recipients (separately for desktop and mobile devices).
The guidelines may change with browser or system updates, so it is worth testing different variants.