user agent string


Also found in: Acronyms.

user agent string

A text field in an HTTP request header that contains the name and version of the Web browser. See HTTP request header, user agent and user agent spoofing.
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References in periodicals archive ?
Let's look at the User Agent strings of both IE and Microsoft Edge:
"That actually dupes a lot of targeting systems--just lying about their user agent strings does not require a lot of technical sophistication," explained White Ops CEO Michael Tiffany.