Mirror As You Link (MAYL) addresses one of the most persistent problems on the Internet: content frequently disappears, seemingly at random. This can happen for a variety of reasons, from distributed denial of service (DDoS) attacks and state-sponsored censorship, to the more mundane yet all-too-common cases of server failure, “Slashdotted” websites, and intentional revisions by the content owner. It has long been recognized that the solution to the problem of information loss is to obey the LOCKSS (“Lots of Copies Keeps Stuff Safe”) principle, making multiple backups of content that is at risk of disappearing. Yet if we consider all the ways that content can be lost, it’s clear that all content is at risk of disappearing. Indeed, even the centralized backups and archives that we make of content are at risk (hence the importance of “lots” of copies).