11. The method as described in claim 9 wherein the lexicon includes a table of entries, each entry comprising a set of one or more of the URLs having a given character pair.
11. The method as described in claim 9 wherein the lexicon includes a table of entries, each entry comprising a set of one or more of the URLs having a given character pair. 12. The method as described in claim 11 wherein the fuzzy search logically ANDs the table of entries with a hashed version of the character string.