| Format | GIF – JPG – HTML4/HTML5* |
| Dimensions | 120×600 px – 223×600 px |
| Size | 50 kB max |
| Tracking | HTTPS ONLY Imps pixel: Yes Click command: Yes |
| Notes | If the format is for TIM, tracking and redirects must be in HTTPS |
| 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 |
| *HTML4/HTML5 | Creatives made in HTML4 or HTML5 must ONLY come in the total redirects |
