| Format | GIF – JPG – HTML5* |
| Dimensions | There must be two retrieved (redirects) and delivered (images) formats: 990×250 px Desktop/Tablet 320×100 px Smartphone |
| Size | 50 kB max |
| Tracking | HTTPS ONLY Imps pixel: Yes Click command: Yes |
| Audio | Yes, playable on clicks |
| Total redirects | HTTPS ONLY JavaScript code accepted. The iframe tag might be requested if necessary |
| Note | The masthead format must adapt to the width of the page when browsing on a tablet and must change to 320x100px on a smartphone |
| *HTML5 | Creatives made in HTML5 must ONLY come in the total redirects and must include the supply of the format in responsive mode |
