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Syntax: zero or more URL prefixes, each on a separate line
Excludes URLs beginning with any of the specified prefixes. The entire URL (hostname, path, and query) is used for comparison.
Examples:
http://www.example.com/scratch0/
http://www.example.com/scratch1/
http://www.example.com/books/t
See also Exclusions 3.4.8, Exclusion REX
3.5.23 and Exclude by Field 3.5.26.