Man pages matching name www::indexparser::entry in section 3pm:

WWW::IndexParser::Entry.3pm.en	debian 10 / libwww-indexparser-perl
WWW::IndexParser::Entry.3pm.en	debian 11 / libwww-indexparser-perl
WWW::IndexParser::Entry.3pm.en	debian 12 / libwww-indexparser-perl