The domain is created to reach the maximum number of allowed characters (255 (really 253)) with an exponential curve in the length of the letters as you proceed through the alphabet. The formula used is "1 + 62 * (10/7)^(x-26)". To help illustrate this curve, reference the distribution on this spreadsheet. It's colorful because I like colors and wanted to do a progressive "rainbow" animation in CSS3.
seq 26 | awk 'BEGIN { printf "<h1>" }; { printf "<i>"; n = int(1 + 62 * (10/7)^($1-26)); c = sprintf("%c",0x61 + $1-1); printf n c; printf "</i> "; }; END { printf "</h1>"; }'
seq 26 | awk 'BEGIN { printf "http://" }; { n = int(1 + 62 * (10/7)^($1-26)); c = sprintf("%c",0x61 + $1-1); for(i=1;i<=n;i++) printf c; printf "."; }; END { printf "me\n"; }'