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The Wayback Machine is a digital archive of the World Wide Web founded by the Internet Archive, an American nonprofit organization based in San Francisco, California.Created in 1996 and launched to the public in 2001, it allows users to go "back in time" to see how websites looked in the past.
The Wayback Machine is a service that allows archives of the World Wide Web to be searched and accessed. [76] It can be used to see what previous versions of web sites used to look like or to visit web sites that no longer even exist. The Wayback Machine was created as a joint effort between Alexa Internet (owned by Amazon.com) and the Internet ...
Similar to archive.today, the Wayback Machine takes snapshots of webpages at certain times, as well as user-initiated on-demand archiving called "Save Page Now" (SPN). [2] [3] Wayback and archive.today operate differently, and certain pages can be archived by one but not the other. Wayback is used in over 80% of instances.
The Wayback Machine is a service which can be used to cite archived copies of web pages used by articles. This is useful if a web page has changed, moved, or disappeared; links to the original content can be retained.
Historically, website owners had the option to opt out of Wayback Machine through the use of the robots exclusion standard (robots.txt), and these exclusions were also applied retroactively. [17] Archive.today does not obey robots.txt because it acts "as a direct agent of the human user." [10] As of 2019, Wayback Machine no longer obeys robots.txt.
Archive.today *does not* use robots.txt so it's more reliable for Wikipedia than wayback machine/internet archive, IA are still blocking or removing pages from archive regularly, example Windows 7 Update privacy policy:
The Wayback Machine is about 80% of the total. Data initially compiled by User:GreenC as of March 2017. Updates and corrections welcome. Archive services.
A widely known web archive service is the Wayback Machine, run by the Internet Archive. The growing portion of human culture created and recorded on the web makes it inevitable that more and more libraries and archives will have to face the challenges of web archiving. [2]