Problems Link Signals finds

Expired domains: the link risk beyond 404s

Most tools tell you a link is broken. The bigger risk is that the domain behind it has lapsed and someone has registered it on purpose, to put their own content where your link already points.

Updated 13 October 2026By Dean Cruddace, Founder, Link Signals

A broken-link report tells you a destination returns an error. That is housekeeping, and most SEO tools do it. The risk sits underneath it. When the domain a link points to lapses, it becomes available to register, and some people register expired domains precisely because pages like yours still link to them.

How the play works

  1. Find domains that have lapsedBacklink data shows which expired domains still have links pointing at them, and from which sites. A domain that an established site links to is worth more to the buyer.
  2. Register itOften cheap, and sometimes grabbed the moment it is released by services built for exactly that.
  3. Put something on itCasino, pharmacy, loans or affiliate pages, a network of sites, or a redirect to a site the owner wants to rank.
  4. Your page does the restNothing on your site changes. The link is still there, now pointing at content you never chose, and visitors who click it arrive there.

Google’s spam policies name this expired domain abuse. How much of a domain’s earlier standing survives a change of owner is debated, and search engines try to discount it. What isn’t debated is that your readers are sent to someone else’s content, and that your page looks as though it vouches for it. A link that isn’t marked nofollow, sponsored or ugc is an ordinary followed link, so it also passes whatever a link passes (link equity) to whoever owns the destination today.

The people who do this look for the links you have forgotten: a citation in a post from years ago, a partner that closed, a resource list, a footnote. The older and better established your site is, the more attractive it is to them, and the less likely anyone is to notice.

The same link, at four points in its life.
StageWhat the link points atWhat a scan reports
The domain lapsesA domain that no longer resolves, or a page that returns 404 or 410Unreachable or Broken. If the registry says nobody holds the domain, Needs review with a Not registered badge.
Someone registers it and leaves it empty or parkedA placeholder or parking pageNeeds review with a Parked badge
It is rebuilt with spamCasino, pharmacy, loan, adult or similar contentNot safe or Needs review, with an Out of context badge when your page isn’t about that topic
It was only just registeredA domain registered in the last 30 daysNeeds review with a New domain badge
It redirects somewhere elseThe site the redirect ends onThe page it ends on is the one judged
Not safe
old-partner-site.example/resources
gamblingOut of context

Out of context: “Spring pruning” links to gambling content. The domain is on a gambling blocklist, so this one is confirmed.

Found on /blog/spring-pruning · Anchor text “partner resources”
An example finding as it appears in a Link Signals report.

On a monitored site, a destination that was Unreachable, Broken, not registered, expired or parked is checked again on every check, which is when a takeover happens. A link that turns bad appears as a new finding and triggers an alert email. A destination judged safe is reused for 30 days before it is looked at again.

  1. Open the pageUse the Found on column to open the page that carries the link, and look at the anchor text in the finding.
  2. Decide whether the link is worth keepingIf the source still exists somewhere else, link to its new address. If it only survives in a web archive, consider linking to the archived copy.
  3. Replace or remove itRemoving a link to a domain that has gone is almost always right. Marking it nofollow stops it passing signals but still sends readers there.
  4. Scan againRun a new scan, or let monitoring pick it up on its next check, and confirm the finding is gone.

Questions

Is a 404 on a live domain dangerous?

Usually not. It is housekeeping: a page was moved or removed. A domain that has stopped resolving is the one to look at first, because anyone can register it.

Read the full answer

Does nofollow make a link to an expired domain safe?

It limits what the link passes. Visitors who click it still land on whoever owns the domain, so replace or remove it for their sake.

Read the full answer

Will Link Signals tell me a domain has expired?

Yes, where the registry allows a lookup. It flags a domain that isn’t registered, one whose registration has expired and stopped or is lapsing, and one registered in the last 30 days, as well as links that are unreachable or broken. A domain whose expiry date has only just passed, but which the registry still lists as active, is not flagged as expired. It is listed with the domains about to expire.

Read the full answer

In your report

Links to lapsed domains are counted on the Not registered or expired card on the Overview tab, which carries a red Priority 2 chip by default. This page is about the part of that card that deals with expiry: the Expired or lapsing number, the Expired chip on a finding, the Expiring in 90 days number, and the expiring domains list on the Inventory tab. The Not registered number is explained on unregistered domains.

In the reportWhat it means
Expired or lapsing (number)Links to a domain the registry shows has stopped working or is on its way out. Counted by link, in red.
Expired (red chip on a row)That link’s domain is one of those. A link that looked fine becomes Needs review, and a link already flagged keeps its verdict and gains the chip.
Expiring in 90 days (number, amber)How many different linked domains run out within 90 days, or have only just passed their date while still active. This is a heads-up and not a finding.
Linked domains expiring (Overview tile)The same count, near the top of the Overview. Select it to open the Inventory tab.

Past the date is not the same as expired

A registry date that has passed is not proof that a domain has lapsed. Registries commonly keep a domain active through a renewal grace period, and some record a renewal late. A domain that is past its date but still listed as active is called past due. It is not flagged as expired and its link’s verdict does not change. It is listed with the domains about to expire, where it reads “today”.

A domain is flagged as Expired when its date has passed and the registry shows it has stopped (an expired, hold, inactive or suspended status), when it is in redemption or pending delete, or when it is still listed as active more than about three months after its date. Flagging it at this stage leaves time to replace the link before the domain is released.

The expiring domains list

On the Inventory tab, the panel “Linked domains expiring within 90 days” shows one chip for each domain with the time left, soonest first. Chips turn amber at 30 days or fewer. Up to ten domains are named, and the count at the top of the panel is the total. A link to a domain on this list works today. The point of the list is to catch the domain before it lapses, while you can still replace the link or ask the owner about the renewal.

The panel can also offer to monitor the site. Monitoring re-checks these domains on a schedule and emails you when a link could be taken over. The button under the list, labelled “What expiring domains mean”, opens this page in a new tab.

What to do next

  1. For an Expired row, replace or remove the link on the page named in Found on, because the domain can be released at any time.
  2. For a domain in the expiring list, decide whether the link is still worth having. If it is, check the owner is renewing. If it is not, remove it now.
  3. Use Mark reviewed and then Re-check to confirm the change, or let the next scan do it.

How this counts in your LinkSignal

A link to a domain that has expired or is not registered is counted in the links to unregistered or expired domains row of your site’s external LinkSignal. A domain that is still registered but due to lapse within 30 days is a separate row, linked domains expiring within 30 days. how the score is worked out gives the points for both, and the LinkSignal overview lists the rest. LinkSignal is Link Signals’ own metric, worked out only from what this tool finds, and it is not connected to any search engine or third-party score.

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Dean Cruddace
Written by

Founder, Link Signals. In SEO since 2001.

SEO specialist with over 20 years of experience in technical SEO, organic search strategy and link building, and Managing Director of Cultured Digital Ltd.

Expired domains: the link risk beyond 404s | Link Signals