Do expired domains still work for SEO?

They can when the new site continues the old topic and offers real value. Repurposing a domain for an unrelated topic is what Google's expired domain abuse policy targets, and there are reports of such sites losing rankings in spam updates.

Is buying an expired domain against Google's rules?

Not in itself. The policy covers buying an expired domain and repurposing it primarily to manipulate rankings with low value content. Relaunching a domain on its original topic with useful content is a different case.

Does a 301 redirect pass link value from an old domain?

It can when the old pages redirect to closely matching pages. Google has long said that redirects to irrelevant targets, such as sending every old URL to the homepage, are treated as soft 404s and the link value is dropped.

How much does an expired domain cost?

GoDaddy's expired auctions start at a reported $25 minimum bid. Practitioner estimates put usable SEO domains at $50 to $500, strong ones at $1,000 to $10,000 or more, and broker-vetted aged domains mostly in four or five figures.

Expired domains, 301 redirects and domain merges

An expired domain is one its owner let lapse. An aged domain is one that has been registered, and usually linked to, for years. People buy both for the same reason: the backlinks are already there. Earning those links from nothing would take months or years.

There are three uses. You can rebuild the domain as a new site, redirect it into a site you already own, or use it as a node in a private blog network. The first two are covered here.

Why people use them

A new domain starts with no links and no history. A domain that once belonged to a real business or publication may hold links from news sites, universities and trade bodies that no outreach campaign would reach.

Redirects have a second attraction. You can remove one. That makes a 301 popular for testing: point the domain, watch what happens, and take the redirect off if the result is bad.

What Google’s policy says

In March 2024 Google added three spam policies, one of them called expired domain abuse. It covers buying an expired domain and repurposing it primarily to manipulate rankings by hosting content that offers little value. One of Google’s own examples is affiliate content placed on a site that used to belong to a government agency.

The August 2025 spam update was reported to focus on this policy again, along with scaled content and site reputation abuse. The Google link spam updates timeline has the sequence.

The policy does not ban buying domains. It targets the topic switch: a former charity site that becomes a casino review site. Keeping the old topic and publishing something useful is a different activity.

Three ways the domain gets used

Use	What happens	Risk
Relaunch on the same topic	The domain is rebuilt as a real site that continues what was there	R2
Genuine merger or rebrand	A business is acquired, its content moves, and old pages redirect to matching new ones	R2
Unrelated redirect or repurpose	A dropped domain is pointed at a money page, or refilled with content on a new topic	R4

The manipulative versions have names. A “301 bomb” stacks many redirected domains onto one page. Some operators redirect through an intermediate domain to put distance between the source and the target. Both fall under expired domain abuse and link spam together.

What it costs

The price is the domain. GoDaddy’s expired auctions start at a minimum bid of $25, according to a domain industry newsletter. Beyond that there is no reliable dataset, so these ranges are practitioner estimates:

Usable domains for SEO: typically $50 to $500.
Strong domains: $1,000 to $10,000 or more.
Broker-vetted aged domains: mostly four to five figures.

In high-risk markets the top end is reported to be higher, with figures of up to $50,000 or more for an aged domain with a strong profile. That claim is low confidence and we could not verify it.

Add the cost of rebuilding. A relaunch needs content that matches the old topic, which is the larger part of the bill.

How to check a domain before buying

Supply of clean domains is the limit on this tactic. Most of what drops has dropped for a reason.

Read its history. Use the Wayback Machine to see what the site was, in which language, and whether it changed hands or topic before.
Read the anchors. A profile full of casino, pharmacy or exact-match commercial anchors means the domain was already used for spam or was hacked.
Confirm the links are still live. Tools report links that were removed long ago.
Confirm it is still indexed. A domain Google has dropped entirely is a warning.
Check for a trademark. A name that belongs to someone else can be taken from you.
Check for previous redirects. A domain that has already been pointed somewhere else has been used once.
Match the links to pages. The value sits on specific old URLs. You need to be able to recreate those pages.

Sourcing tools named in our research include SpamZilla, DomCop and Expireddomains.net. Ahrefs and the Wayback Machine cover the checks.

How to redirect or merge properly

A genuine merger has four features: a real acquisition or rebrand, page-level mapping, content that actually moves, and an announcement.

Map each old URL to its closest equivalent. Do not send everything to the homepage. Google has said for years that redirects to irrelevant targets are treated as soft 404s, which means the link value is dropped. Relevance between the source page and the target page is what makes a redirect count.

For a relaunch, rebuild on the previous topic and keep the previous URL structure where you can. Then grow it as a real site.

How it gets caught

A break in the archive. The Wayback Machine shows one site, then a gap, then a different one.
Ownership and topic change together.
Links from contexts that no longer fit. A local newspaper article about a youth club now points at a betting page.
A sudden jump in referring domains that all arrive through a redirect.
Inherited anchor text unrelated to the target page.
Redirect chains.

Other buyers look for the same signals. A site built on a repurposed expired domain scores zero for domain history in our publisher vetting checklist.

The outcome is usually silent. The inherited links stop counting and the money is spent. Google said with its March 2026 spam update that when the effect of spam links is removed, the ranking benefit is lost and cannot be regained. Our high-risk market research also notes reports of redirected aged domains losing their effect in 2026 spam updates, which is a medium to low confidence observation.

Who uses it

Affiliates use aged domains to start new projects with a head start. Companies use redirects after acquisitions and when they consolidate sites they own. iGaming affiliates use redirects aggressively, often on sites they expect to lose.

When not to use it

Do not point an unrelated domain at a site you cannot afford to lose. The redirect is removable, but a manual action is slower to undo. See Google link penalties and recovery.

Do not buy a domain because of its DR alone. If you cannot rebuild the pages the links point to, and you cannot keep the topic, you are buying a number.

A brand should only buy the domain of a defunct business in its own field. For anything else, the same budget is safer spent on links to the site you already have.