Nah, there are on the order of magnitude of a trillion web pages (though it's hard to count given dynamic pages and such), but a billion domains (which also has

Nah, there are on the order of magnitude of a trillion web pages (though it's hard to count given dynamic pages and such), but a billion domains (which also has many dupes). The number of domains is definitely closer to a billion than a trillion. This number can be verified pretty easily (unlike the number of web pages).