The Internet Archive discovers and captures web pages through many different web crawls.
At any given time several distinct crawls are running, some for months, and some every day or longer.
View the web archive through the Wayback Machine.
Web wide crawl with initial seedlist and crawler configuration from October 2010
TIMESTAMPS
The Wayback Machine - https://web.archive.org/web/20110106192206/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/host
Host is the term used to describe a computer on a network that will act as a server for all of the other computers on the network. A Web host would be the computer that provided a Web sites content for all the other computers that accessed it.