What is drop-catching?
Drop-catching is the practice of registering a domain name at the moment it "drops," meaning the moment the registry deletes it after the previous owner stopped renewing it. For example, a small charity lets its domain lapse after closing; on the day the name is deleted, several automated services each try to register it, and whichever request reaches the registry first wins the domain.
Domain names are not owned outright. Registries and registrars charge a fee, usually annual, for the right to use a name, and what the registrant holds is "the exclusive right to use the domain name" [1]. When that right is not renewed, the name eventually returns to the pool of names anyone can register. Drop-catching is the competition to be first when that happens.
How does drop-catching work?
Drop-catching works by sending registration requests for an expiring domain at the exact time it is released, faster than anyone else. The process has three stages:
- Expiry. The registration reaches its end date and the owner does not renew. The name does not disappear immediately: for generic domains there is a period in which the original owner can still renew, and then a further period in which the owner can still recover it before deletion.
- Deletion. Once those periods pass, the registry deletes the name and it becomes available for registration.
- The catch. Drop-catch services, working through registrars, send registration requests for the name as it is released. The first successful request registers the domain.
Most people do not drop-catch domains themselves. They place a backorder with a drop-catch service before the name drops. If the service catches the name and only one person backordered it, that person gets it. If several people backordered the same name, the service usually runs an auction among them.
Drop-catching is how many expired domains re-enter the domain aftermarket, the business of reselling registered domain names [1].
Why do SEOs drop-catch expired domains?
SEOs drop-catch expired domains because the new owner inherits the old domain's backlinks. Links that other sites built to the previous owner still point to the domain after it changes hands. A buyer can redirect the domain, rebuild a site on it, or use it to publish content with links to other sites.
Search engine optimization benefits are listed among the factors that give domains aftermarket value [1]. This is the point where drop-catching meets link building, and where Google's spam policies come in. Search Insider does not support or suggest the use of private blog networks, which are commonly built from drop-caught domains.
Is drop-catching against Google's guidelines?
Drop-catching itself is not against Google's guidelines, because registering an available domain is not a search ranking practice. What Google prohibits is expired domain abuse: "where an expired domain name is purchased and repurposed primarily to manipulate search rankings by hosting content that provides little to no value to users" [2].
Google's own examples describe drop-caught domains used for something unrelated to their past [2]:
- affiliate content on a site previously used by a government agency
- commercial medical products sold on a site previously used by a non-profit medical charity
- casino-related content on a former elementary school site
Sites that violate Google's spam policies "may rank lower in results or not appear in results at all," and Google detects violations through automated systems and, as needed, human review that can result in a manual action [2].
When did Google start targeting drop-caught domains?
Google named expired domain abuse as its own spam policy on March 5, 2024 [3]. Before that, Google dealt with repurposed expired domains under its broader link spam rules.
Before 2024: link spam rules
Before March 2024, a drop-caught domain used to pass links fell under Google's link spam policy, which covers creating links "primarily for the purpose of manipulating search rankings" [2]. There was no policy that named expired domains specifically.
March 5, 2024: expired domain abuse is named
On March 5, 2024, Google added three spam policies to its documentation: expired domain abuse, scaled content abuse and site reputation abuse [3]. Google announced the new policies that month together with its March 2024 core update [4].
What is the difference between drop-catching and buying an aged domain?
The difference is whether the registration lapsed. Drop-catching acquires a domain after it expired and was deleted, so there is a break in ownership. Buying an aged domain from its current owner transfers a registration that never lapsed.
| Drop-catching | Buying an aged domain from its owner | |
|---|---|---|
| Registration lapsed? | Yes, deleted and re-registered | No, transferred |
| Seller | No seller; the name is caught at release (or won at a backorder auction) | The current registrant |
| Break in ownership and content | Usually | Not necessarily |
| Relevant Google policy | Expired domain abuse | Expired domain abuse only if it was expired and repurposed; otherwise general spam rules |
Many domains marketed as "aged" were drop-caught. The label describes how old the name is, not whether it changed hands through expiry.
What is the difference between drop-catching and domain squatting?
Drop-catching is about timing, while domain squatting (cybersquatting) is about trademarks. Drop-catching registers a name the moment it becomes available, whatever the name is. Cybersquatting registers a name that matches someone else's trademark in bad faith. A drop-caught domain can also be a squatted domain if the expired name was a brand, but most drop-caught names are not.
How do you tell if a site is on a drop-caught domain?
To tell if a site is on a drop-caught domain, look for a break in its history. These checks help when vetting a site you might buy a link from:
- Archived versions. Public web archives often show the domain's earlier site. A different organization, language or subject, followed by a gap, is the classic pattern.
- Registration date. A WHOIS or RDAP lookup [1] that shows a recent registration on a domain with years of backlinks suggests the name was deleted and registered again.
- Backlinks to missing pages. Many links pointing to old URLs that now return errors, or to content the current site never published, suggest inherited links.
- Topic mismatch. Backlinks from charities, schools or government sites pointing to a casino or affiliate site match Google's own examples of abuse [2].
A drop-caught domain is not automatically a bad link source. A new owner may rebuild a genuine site on a related subject. The checks show whether the authority you are paying to borrow belongs to the current site.
What should link buyers do about drop-caught domains?
Link buyers should avoid placements on drop-caught domains that were repurposed to sell links, and judge any other drop-caught domain on what it publishes now. The safest sources are sites whose current content, authors and readers match the backlinks they hold.
If links from repurposed domains lead to an "Unnatural links to your site" manual action, Google's recommended response is to identify the violating links, ask site owners to remove them or add nofollow, disavow the rest and submit a reconsideration request [5].