An HTML mirror is a website or webpage that replicates the content and design of another website using HTML code. It acts as a duplicate or reflection of the original site, allowing users to access the same information and features. This can be useful for creating backups of websites, improving website performance by distributing traffic, or providing access to blocked or restricted sites. HTML mirrors are commonly used for popular websites, such as social media platforms, news sites, and online marketplaces. They provide a convenient and efficient way to access the same content from different sources, making it easier for users to browse and navigate the web.