Where is the 320×50 format used?
The mobile leaderboard is anchored to the bottom edge of mobile pages and stays there while the reader scrolls. Less often it is fixed below the header instead.
How much copy fits into 320×50?
| Headline (recommended) | 30 characters |
| Subline useful | — |
| Product image useful | — |
| Target file size | ≤ 25 KB (JPG) |
Three to five words and one clear call to action. Fifty pixels of height allow nothing more.
Related sizes
Design tips for 320×50
- ✓Advertiser first: the logo or wordmark must be recognisable in under a second.
- ✓One message per design — headline, optional subline, one button.
- ✓Contrast over taste: text at least 4.5:1 against the background.
More Display / Affiliate formats
| FORMAT | SIZE | USE |
|---|---|---|
| Leaderboard | 728×90 | IAB |
| Medium Rectangle | 300×250 | IAB |
| Large Rectangle | 336×280 | IAB |
| Wide Skyscraper | 160×600 | IAB |
| Skyscraper | 120×600 | IAB |
| Half Page | 300×600 | IAB |
| Large Mobile Banner | 320×100 | IAB |
| Full Banner | 468×60 | IAB |
| Super Leaderboard | 970×90 | IAB |
| Billboard | 970×250 | IAB |
| Square | 250×250 | IAB |
| Small Square | 200×200 | IAB |
| Panorama | 980×120 | DACH |
| Wallpaper Top | 800×250 | DACH |
Frequently asked questions
- How is 320x50 different from 320x100?
- Only in height, but that changes everything. 320x50 carries one line of copy and a button; 320x100 adds a logo, a product shot or a second line. Where both are available, 320x100 usually earns better click rates while 320x50 has the larger inventory.
- Why does the file need to be so small?
- Because it loads over a mobile connection and often sits in the first viewport. Stay well under the 150 KB ceiling Google applies to image ads. At this surface area 20 to 30 KB is easy to hit and keeps the banner from appearing late.
- Which file format and file size?
- myfeedr delivers 320×50 as PNG (lossless) and JPG. For trafficking, the JPG is what counts: around 25 KB is a realistic target for this size – small enough for any network without visible quality loss.
- What does the format cost?
- Formats are not sold individually — :size is part of the "Mobile" package from 99 €. Analysing your website is free.
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