Good catch, I'll go with:
On many (if not most) of the computers that make up the backbone of the Internet .
I wasn't the original writer for Introduction and Features pages, there were a lot of long sentences originally. 
We're about up to date with changes mentioned in this thread (and later today, @wolfman's). Translations were also resynced to Tranflex yesterday..
Many thanks @Aluxandria, @wolfman and @DaveB for helping perfect Welcome's language side of things! 