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/20101206223602/http://www.searchengineoptimising.com/glossary/glossary-of-computer-and-internet-terms/dsl
DSL (Digital Subscriber Line) is the term used to describe the technology used to transfer data over a telephone line and connect to the Internet. It is faster than a normal telephone connection which helps transference.