http://web.archive.org/cdx/search/cdx?url=*.archive.org/*&output=json&output=json
# data range
&from=2014&to=2014
# read from the list, -N the last N results
&limit=-1
# remove duplications
&collapse=digest
# add a varible to show if the entry is duplicated or not
# 0 is either the first entry or no duplication
# 1 duplicated
&showDupeCount=true
https://github.com/internetarchive/wayback/blob/master/wayback-cdx-server/README.md