Hello everybody:
When using puppy linux xenialpup xxl 7.4, one day, I started to obtain no result when using twitter url shortener t.co.
Finally I solved it, but it is possible other users have the same problem.
All you must do is update your integrated puppy advert-bloquer.
https://pp4mnkpuppyblog.wordpress.com/2 ... ener-t-co/
Hope it helps.
Have a nice day.