Google always up for some interesting sub-domains, such as sina.google.com.Later, a message asks readers what is the entrance to the sb.google.com in the end?
Because it will be to directly access the Google home page.I did not know the answer.But now, the answer seems to emerge.
Philipp inadvertently found a reader Google's blacklist, and this black one is sb.google.com just above.In addition, a link from it that sb.google.com / safebrowsing / opinion, sb probably refers to SafeBrowsing (safe browsing).Therefore, we do not have to wonder sb is the representative of the popular word that.
Google is always unexpected things