Do old backlinks really lose their SEO value over time?

Why does this statement challenge a common belief?

For years, many SEOs have believed that aging backlinks naturally lose value, much like an asset that depreciates. This view has fueled a continuous race to acquire new links to compensate for this supposed erosion.

Mueller directly contradicts this idea: the age of the link itself is not a depreciation factor. What matters is the current position of the link in the architecture of the source site. A link from an article published three years ago and still accessible on the homepage retains its strength. The same link, relegated to a dusty archive, loses its impact — but not because of its age.

What truly influences the value of a backlink?

The value of a link depends on its position in the link graph of the source site. A newly published article often enjoys privileged visibility: homepage, main categories, latest articles sidebar. Therefore, it receives internal PageRank, and its outgoing links inherit from it.

Over time, this same article migrates to the archives. It loses its privileged positions, its internal linking weakens, and the PageRank it transmits mechanically decreases. The link still exists, it still points to you, but its weight has changed — not because it has aged, but because the editorial context has evolved.

How does Google concretely assess this evolution?

Google regularly recrawls pages and recalculates PageRank based on the current topology of the site. If your backlink is now three clicks away from the homepage instead of one, its weight changes. If the article linking to you receives fewer internal links than before, its ability to pass on link juice diminishes.

This reevaluation is constant and algorithmic. No penalties are applied based on age — it’s purely a question of the link graph and PageRank flow. An old link can even gain value if the source site restructures its internal linking to highlight it better.

• The age of a link is not in itself a deprioritization criterion in Google’s algorithm
• The position of the link within the source site’s hierarchy determines its current weight
• The PageRank conveyed varies depending on internal linking and page depth
• Google continuously recalculates the value of links based on the current topology of the site

Does this explanation hold up against real-world observations?

Let’s be honest: this statement is consistent with the fundamental principles of PageRank. On paper, the algorithm contains no direct temporal variable that penalizes old links. What matters is indeed the current link graph, not its history.

That said, in practice, distinguishing "the age of the link" from "the evolution of its context" can sometimes be a nuanced debate. If 90% of old links indeed end up archived, the observable effect is similar to a time-related depreciation — even if the underlying mechanics differ. Mueller is technically correct, but in practice, the outcome often converges.

What nuances should be added to this statement?

First nuance: not all sites manage their archives the same way. Some blogs maintain solid internal linking to their old articles, while others let them languish five clicks deep. A link from Wikipedia will likely age better than a link from a standard WordPress blog where old posts quickly disappear from radar.

Second nuance: some indirect signals may correlate with age. An old article statistically has a higher chance of containing outdated content, broken links, or dated layouts. Google may devalue the page for these reasons — and indirectly, its outgoing link loses weight. It’s still not "age" that penalizes, but the symptoms that often accompany it. [To be verified]: Google officially denies any direct temporal signal, but it’s hard to completely exclude indirect correlations.

In what cases does this logic not fully apply?

This mechanism assumes that the source site remains active and regularly crawled. If the site falls into disuse — publication halts, traffic collapses, reduced crawl budget — Google will recalculate PageRank less often. Your old links may then stagnate in a sort of limbo where their value isn’t really updated.

Another edge case: links from highly specialized or evergreen pages. A link from a reference guide published five years ago but still ranking first in its field retains stable, even growing weight if the guide gains authority. Age plays no role — nor does archiving, as the page remains central.

What should you do to preserve the value of your backlinks?

First action: regularly audit the position of your backlinks in the source sites' hierarchy. Use a tool like Ahrefs or Majestic to identify links that have migrated to archived or deep pages. If a strategic link ends up buried, contact the webmaster to request an update or repositioning.

Second action: favor links from evergreen or structurally central pages. A link from an "About" page, a glossary, or a reference guide is more likely to maintain its position over time. Conversely, a link from a news article has a predictable limited lifespan — anticipate this degradation right from acquisition.

How can you identify backlinks that are actually losing value?

Monitor the crawl depth of your backlinks. If a link goes from 1 click from the homepage to 4 clicks, its weight has likely dropped. Cross-reference this data with the organic traffic evolution of the source page: a significant drop often correlates with weakened internal linking.

Use PageRank flow metrics (Domain Rating, Page Authority, etc.) on the source pages. A gradual decline in these scores indicates that the page is receiving less internal juice — and therefore passing on less. It’s not the age of the link that matters, but this structural evolution.

What mistakes should you avoid in your link-building strategy?

Classic error: focusing solely on acquiring new links while neglecting the maintenance of old ones. If you acquire 50 backlinks a year but 40 lose 80% of their value due to archiving, your net progress is minimal. You need to balance acquisition and maintenance.

Another pitfall: assuming that all old links are dead. Some retain an excellent position in the source hierarchy and continue to pass quality juice. Don’t disavow or deindex a link just because it’s three years old — first check its current position.

• Audit quarterly the crawl depth of your strategic backlinks
• Prioritize acquisitions on evergreen or structurally central pages
• Monitor the evolution of authority metrics of the source pages hosting your links
• Contact webmasters if a strategic link is relegated to the archive
• Diversify between news links (short-term) and structural links (long-term)
• Never disavow an old link without first verifying its current position in the source site