Wayback Machine is described as 'Browse through over 150 billion web pages archived from 1996 to a few months ago' and is a very popular Web Archiving Service in the Web Browsers category. There are more than 10 alternatives to Wayback Machine for a variety of platforms, including Online / Web-based, Mac, Windows, Linux and Self-Hosted solutions. The best alternative is Archive.is, which is free. Other great apps like Wayback Machine are ArchiveBox (Free, Open Source), Archive.st (Free), Resurrect Pages (Free, Open Source) and Time Travel (Free).
Because modern websites are complicated and often rely on dynamic content, ArchiveBox archives the sites in several different formats beyond what public archiving services like Archive.org and Archive.is are capable of saving.
Dead pages, broken links, the scourge of the internet. Powerhouse sites like Slashdot and Digg can bring a server to its knees. What do we do when a page is dead but we still want to see it? Call in the clerics, and perform a resurrection ceremony!