Millions of dollars are spent each year acquiring expired and expiring domain names at auctions. Domain name registrants let their domain names expire, and people – including domain investors – will bid on them when they are offered for sale via auction or drop catching platform.
There is a segment of domain name buyers who seek out expired domain names for SEO purposes. They may either try to build a website on an expired domain name to capitalize on traffic from inbound links, or they may choose to redirect the domain name to another website for the “SEO juice” given off by these expired domain names.