I didn't try this BECAUSE it lacks a method to choose ONCE (one time) your preferences for which mirror site (and i would choose the bit-torrent-like technonology behind NYU's CORAL network). .....It definitely needs it may be a 9, i never used it because i'm hooked on the "error404: page not found? now it will be!" add-on. Cool concept. Seems more powerful, if you like old cache's, even of Way Back Machine