When testing Cocoa data detector I found that forecast.io isn't picked up but www.forecast.io and forecast.com are.
What are all the top level domains found by NSDataDetector without prefixing them with www.?
I wrote about how to pick an Apple friendly TLD and my findings are recounted below.
I just took the text file from ICANN and prepended all the extensions with 'example.' and the only ones detected at least in my locale(US) were these:
Uppercase:
example.com
example.EDU
example.EU
example.GOV
example.LY
example.NET
example.ORG
Lowercase:
example.ar
example.at
example.au
example.be
example.br
example.ca
example.ch
example.cn
example.de
example.dk
example.edu
example.es
example.eu
example.fi
example.fr
example.gov
example.gr
example.hk
example.hu
example.il
example.is
example.it
example.jp
example.kr
example.lu
example.ly
example.ma
example.mx
example.net
example.nl
example.no
example.nz
example.org
example.pt
example.ru
example.se
example.sg
example.th
example.tn
example.tr
example.tw
example.ua
example.uk
example.us