Ad Specification

Image

Required

Images should be no bigger than 200KB and either in PNG or JPG.

Editorial and portrait images have the best engagement.

We do not allow images containing text or logos.

Headline

Required

Maximum length for a headline is 90 characters including spaces. However, our recommendation is not to have a headline longer than 60 characters.

Please note that our Norwegian widgets only allow for 75 characters including spaces. 

The length of the text is adjusted according to the site's settings. Therefore, longer headlines might be cropped with (...) on some sites.

Do not use periods in headlines.

We do not allow special characters in headlines.

Short Headline

Required for Sweden, Denmark & Finland only

The maximum length for a short headline is 30 characters, including spaces. For ads in Sweden, Denmark and Finland both a short and a long headline are required, though only one will appear in the ad at a time.

Body

Optional

Maximum length for the body text is 90 characters including spaces. However, our recommendation is not to have a body text longer than 80 characters.

Please note that our Norwegian widgets do not contain a body text. 

The length of the text is adjusted according to the site's settings. Therefore, longer body texts might be cropped with (...) on some sites.

Brand name

Required

Max length 40 characters.

Logotype

N/A

Not supported

Third-party impression pixels are supported

You are free to use your own impression pixels (i.e. .gif, .png and .jpg) to measure impressions. The pixels will be rendered on the page once our criteria for a viewable impression has been met.

Read more about how we measure viewable impressions.

Third-party JavaScript trackers generally not supported

We do not support JavaScript trackers (i.e. for the purpose of measuring view-ability). There is however two exceptions to this rule:

  1. Use of MOAT JavaScript impression trackers
  2. Use of IAS JavaScript impression trackers

Avoid text, logotypes and icons in images

Strossle inventory is customised to fit the look and feel of each individual publisher website. In some cases that means that the image ratio needs to be adjusted to fit custom requirements from a publisher.

Strossle will handle resizing of images automatically when needed. This is possible by focusing on faces or other relevant objects in the image and crop the edges of the image to fit the image ratio of the publisher.

When using text, logotypes or icons in your images there's a risk that part of the image will not be visible on some placements. Hence, we recommend that you avoid using content such as text, logotypes and icons in your images. Always keep your text to the title or description assets.

Avoid using line breaks in the body text

Good (works)

This is the body text.

Bad (won't work)

This is the
body text.

How did we do?

Including referrer in your click URL

Measuring conversions per Ad Creative

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