Semilo follows the international standards of online advertising formats as set by the Interactive Advertising Bureau, see an overview here. Ads can be supplied in GIF, PNG or JPEG format but also HTML or Flash.
Below you can find an overview of the most often used creatives and their specification. If anything is unclear, please don't hesitate to contact our traffic department.
| GIF/JPEG and Flash creatives | ||
| Creative | Size | Weight |
| Full banner | 468x60 | 40kb |
| Skyscraper | 120x600 | 40kb |
| Wide skyscraper | 160x600 | 45kb |
| Medium rectangle | 300x250 | 45kb |
| Large rectangle | 336x280 | 50kb |
| Leaderboard | 728x90 | 50kb |
| Rich Media - Expandables | |||||
| Creative | Initial size | Weight | Expanded size | Expanded weight | Expanding direction |
| Leaderboard | 728x90 | 50kb | 728x270 | 100kb | Down |
| Skyscraper | 120x600 | 40kb | 300x600 | 100kb | Left or right |
| Rectangle | 300x250 | 50kb | 500x250 | 100kb | Left or right |
| Full banner | 468x60 | 35kb | 468x240 | 100kb | Down |
Using different file formats
1. GIF, PNG and JPEG banners
If you use standard images for creatives you can choose to use GIF, PNG or JPEG formats. Other types like BMP, PSD and EPS are not supported.
2. Flash banners
Nowadays most creatives are created in Flash. The advantage of Flash is that it supports prettier and better animation. If you want to use Flash for your creatives please keep in mind that you need to embed the clickTag-code in the Flash creatives.
Flash penetration is almost at 100% so everyone should be able to view your creative. For consumers that have non-Flash supporting browsers we need to be able to serve a backup image for every creative. Please supply your backup image in either GIF, PNG or JPEG.
