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/20110107051601/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/vpn
VPN (Virtual Private Network) is used mainly by large companies as it encrypts all the data being transferred via the Internet so that it cannot be seen. Hence the term "Virtual Private Network" it is similar to having the Intranet via the Internet.