A pre-release auction is a domain auction that happens before the domain officially drops from the registry. The current registrar partners with an auction platform to sell the domain during the expiration window, before it reaches pending delete. You're bidding on a domain that hasn't been deleted yet.
How pre-release auctions work
When a domain expires and the owner doesn't renew, the registrar has a choice. They can let it go through the normal deletion cycle and hope a drop catching service grabs it. Or they can partner with an auction platform to sell it early and take a cut of the sale price.
Many registrars choose the second option. They feed expiring domains to platforms like DropCatch, which lists them as "Pre-Release" auctions. DropCatch is the most visible example. In their listings, you'll see domains marked as "Pre-Release" alongside regular "Dropped" auctions. The difference matters: pre-release domains are guaranteed to transfer if you win. There's no race against other drop catching services.
The trade-off is price. Pre-release auctions tend to attract higher bids because buyers know there's no risk of losing to a competing drop catcher. You pay more, but you get certainty.
Why it matters for expired domains
Pre-release auctions give you access to domains before they hit the open market. If you spot a high-value domain with strong Trust Flow or rare ccTLD, bidding in a pre-release auction guarantees you'll get it if you're the highest bidder. No worrying about a competitor's backorder service beating you to the punch.
On CatchDoms, DropCatch domains show their auction type so you can see exactly what you're bidding on. Filter the DropCatch tab by auction type to focus on pre-release listings specifically.