The international symbol of the Internet. The colons indicate data introduced and emitted. "I" is also the 9th letter in the alphabet, which actually resonates with "www", Hebraically representing '666', which of course, adds to '9'.
As it happens, this missive is written on Friday the 13th, which itself resonates with '9', if you calculate Friday as the 5th day of the week, added to 13, the quotient adds to 9. Ergo, 5+1+3=9. ∞