I need a crawler to crawl www.streetdirectory.com.
A postal code in Singapore is 6 digits. e.g. 550318
I would like a crawler to crawl from 000000-999999 and to get the corresponding postal address. Some of the numbers (e.g. 550260) are not used, so the search will return a "Your search found 0 results".
Those numbers that are in used (e.g. 550261), I want to know the corresponding address. In the case of 550261, I want "261 Serangoon Central Drive".
End result of crawl, I like a database (in excel) of 1 million entries (000000-999999) of 2 fields - 1 is the postal code, and 1 is the postal address.