Similar to Shadow_DOM

.th

.tj

.tk

.tl

.tn

.to

.tokyo

.tr

Transifex

Tripod (web hosting)

.tt

Tumblr

.tv

.tw

Typepad

.ua

.ug

.uk

Uniform Resource Identifier

Urchin (software)

.uy

.uz

.vc

.ve

.vg