URL truncation parameter

wt.tu indicates the maximum URL length limitation was imposed by Microsoft Internet Explorer.

The URL length must be 2048 or less. If the JavaScript tag generates a URL in excess of 2048 characters and the client browser is Internet Explorer, the hit is truncated. The JavaScript tag generates this parameter and sets it to 1 if the URL was deemed too long and was truncated by the tag. If present, an error is written by default and discards the hit.

Valid value 1
Syntax wt.tu=1

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Full Parameter Reference

wt.tu