Do Backlinks Expire? (Why Links Disappear Over Time)

No — backlinks have no expiry date and don't decay on a schedule. A link keeps passing value for as long as the page it sits on stays live, indexed and unchanged. What people mistake for expiry is deletion: the page gets removed, redesigned, migrated or edited, and the link goes with it.

The web decays, and the numbers are real

Link loss isn't an SEO curiosity — it's the normal condition of the internet. A Pew Research Center study published in May 2024 found that 38% of web pages that existed in 2013 were no longer accessible a decade later. Pew also found that roughly a quarter of all web pages sampled from 2013–2023 had vanished from their original location.

Apply that to your backlink profile and the implication is uncomfortable but simple: a meaningful share of every link you build will be gone in a few years, through no fault of yours. Link building isn't a one-time accumulation. It's closer to maintaining a garden — some replacement is required just to stay level.

The eight ways a backlink disappears

Knowing which one happened determines whether you can get it back.

1. The page was deleted. The most common cause and usually final. A blog gets pruned, a roundup is retired, a company shuts down.

2. A redesign or CMS migration. URLs change without redirects, or a template swap drops the body content that held your link. Frequently accidental, and often recoverable if you tell the site owner promptly.

3. The content was refreshed. A writer updates a 2022 post for 2026, rewrites the section your link was in, and doesn't carry the citation across. Extremely common on the exact high-quality pages you most want links from.

4. An editor removed it deliberately. Paid placements get cleaned out. Exchange partners quietly delete their side. Some publishers periodically audit outbound links.

5. The domain expired. The whole site goes, sometimes reappearing months later as an unrelated parked page or spam site. Watch for this one — a link from a domain that's been repurposed is now a link from somewhere you don't want.

6. dofollow became nofollow. The link is visibly still there, which is why this one goes unnoticed for months. A plugin change or an outbound-link policy can do it site-wide. Check the rel attribute, not just the presence of the link — dofollow vs nofollow explains the difference in what's passed.

7. The page fell out of the index. The link still exists in HTML, but a noindex tag, a robots.txt rule or Google simply declining to index a thin page means it counts for nothing. How to check if a backlink is indexed covers the two-minute test.

8. A redirect chain got broken. The linking page 301s somewhere, that target 301s again, and eventually one hop 404s. Value stops at the break.

What happens to your rankings when links go

Gradually less than people fear, and slower than they expect.

Losing one link out of two hundred is noise. Losing a large share of your referring domains — because a network you relied on shut down, or a directory purged its outbound links — shows up as a real ranking decline over the following weeks. The effect is not instant: Google has to re-crawl the linking pages to notice, which takes anywhere from days to a couple of months.

That lag cuts both ways. It means a ranking drop today may reflect links lost two months ago, and it means panic-checking your rankings the day after losing a link tells you nothing. When diagnosing a drop, pull your lost-links report for the preceding quarter, not the preceding week.

How to spot losses

Backlink tools. Ahrefs, Semrush and Moz all maintain a "Lost" backlinks view that flags links their crawler can no longer find. Ahrefs' is the most-used. Check it monthly. Expect false positives — a tool reporting a loss sometimes just means its crawler had a bad fetch, so verify by loading the page before acting.

Search Console. The Links report shows what Google has found, but it updates slowly and samples rather than listing everything. It's useful for confirming a trend, not for catching individual losses.

Manual spot-checks. For your twenty most valuable links, open them quarterly and confirm three things: the link is present, the rel attribute hasn't changed, and the page still returns 200. This takes fifteen minutes and catches the nofollow switch that automated reports often miss.

Recovering a lost link

Worth attempting for links that mattered; not worth chasing across a long tail of small ones.

Establish what happened. Load the URL. A 404 means deletion; a live page without your link means an edit; a redirect means a restructure.
Check the Wayback Machine. web.archive.org shows you the page as it was, which lets you quote the exact context when you get in touch — far more persuasive than "you used to link to me."
Email the owner, briefly and usefully. If the page was restructured, point out that the old URL is 404ing and suggest a redirect — that helps them, not just you. If your citation was dropped in a rewrite, say what it supported and why it's still relevant.
If the site is gone, treat it as a broken-link opportunity. Anyone else linking to that dead page now has a broken link, and you have a replacement. That's broken link building with the research already done.

Building a profile that doesn't quietly drain

Some link sources decay much faster than others. Directory listings, mass guest posts, and anything on a site that exists to publish links have short and unpredictable lifespans. Links inside genuinely useful content on a site someone actually maintains tend to survive, because nobody has a reason to remove them.

Reciprocal arrangements have a specific failure mode worth naming: the other party removes their side after you've placed yours, and you don't find out for six months. The defence is verification rather than trust. Backlinkster checks every swapped link by code on an ongoing basis and flags it when it stops resolving, so a partner quietly deleting their half surfaces immediately instead of at your next audit. Swaps sit in-content rather than on a links page for the same durability reason. See the plans — five verified swaps a month on the free tier.

Frequently asked questions

Do backlinks expire? No. Backlinks have no expiry date and don't weaken with age. A link keeps passing value as long as its page stays live, indexed and unedited. When a backlink "expires," what actually happened is that someone deleted the page or removed the link.

How long do backlinks last? Indefinitely, in principle — but Pew Research found 38% of pages from 2013 were inaccessible by 2023, so in practice expect meaningful attrition over years. Links inside maintained editorial content last longest; directory and mass-guest-post links are the least durable.

Why did my backlinks disappear? Usually one of: the page was deleted, the site was redesigned or migrated without redirects, the content was rewritten and your citation dropped, an editor removed it deliberately, or the domain expired. Load the URL — a 404 means deletion, a live page without your link means an edit.

Do lost backlinks hurt rankings? Losing a few is noise. Losing a large share of your referring domains causes a real decline, though it appears gradually as Google re-crawls the linking pages — typically weeks to a couple of months later. That lag is why lost-link reports should be read across a quarter, not a day.

How do I check for lost backlinks? Use the "Lost" backlinks report in Ahrefs, Semrush or Moz monthly, and manually re-check your twenty most valuable links each quarter for presence, rel attribute and a 200 status. Verify any reported loss by loading the page — crawler false positives are common.

Can I get a lost backlink back? Often, if the site still exists. Find the original context in the Wayback Machine, then email the owner with something useful — a 404 they'll want to fix, or a reason your citation still supports the point. Recovery rates are far better than cold outreach for a new link.

Does an old backlink lose value over time? Not through age itself. Value can fall for other reasons — the linking page loses its own links, drops out of the index, or the site declines — but a link on a healthy page that stays live doesn't fade on a schedule.

The bottom line

Nothing expires; things get deleted. Roughly a third of the decade-old web is already gone, so treat link attrition as a normal operating cost rather than a crisis. Check a lost-links report monthly, spot-check your best links by hand each quarter, chase back the ones worth chasing, and favour placements inside real content on maintained sites — those are the links that are still there in three years.