AO3 is entirely run by volunteers and funded by user donations through the Organization for Transformative Works (OTW). Because it operates on a lean infrastructure, the site occasionally succumbs to massive traffic spikes or targeted Distributed Denial of Service (DDoS) attacks. During these outages, a mirror can act as a temporary gateway while engineers work on the main servers. The Risks of Using Unofficial AO3 Mirror Links
A (or mirror site) is an exact copy of a website hosted on a different server or domain. If the main site (archiveofourown.org) goes offline due to traffic spikes, DDoS attacks, or server maintenance, a mirror site allows users to read content, post works, or browse tags on a backup server. ao3 mirror link
An AO3 mirror link is a website that replicates the content, database, or interface of the official Archive of Our Own platform. AO3 is entirely run by volunteers and funded