All creatives, URLs and tracking should always be secure (HTTPS).
Standard dimensions
Panorama Standard – 980×240/120/300/600 px, max weight: 150kb
Outsider / TWS – 250×600/360 & 300x250 px, max weight: 150kb
MPU – 480×280 & 300x250 px, max weight: 150kb
Mobile Standard – 320×320/480 px, max weight: 100kb
For all standard formats we accept the following formats; JPG, GIF, PNG, Third-party script, HTML (please follow the HTML specification for Adform on this page)