💡 Think of it like this: Every link to your site is like a vote in an election. Link Decay determines how much weight each vote carries — a vote from a senator counts more than one from a stranger.
How Link Decay Works
Link decay is the natural phenomenon by which a website’s backlinks gradually disappear over time. Pages get deleted, websites go offline, content gets reorganised with new URLs, and editors update articles that previously linked to you — removing or replacing those links. Studies have shown that a significant percentage of backlinks are lost every year even for well-maintained websites. Link decay means that link building is never a one-time activity but a continuous investment required just to maintain your current backlink profile, let alone grow it.
Why Link Decay Matters for SEO
The rate of link decay varies by industry, content type, and link source. News site links tend to decay faster as articles age and are archived. Resource page links can be more durable if the resource page itself remains actively maintained. Monitoring your backlink profile regularly using tools like Ahrefs allows you to catch significant link losses quickly, investigate the cause, and take action — such as requesting the link be reinstated if it was removed accidentally, or replacing the lost link through new outreach. If you’re unsure how Link Decay is impacting your site, working with an experienced SEO consultant can help you identify the problem and fix it efficiently.
Common Link Decay Mistakes
Link reclamation is the primary countermeasure to link decay. By proactively identifying lost links — particularly from high-authority sources — and reaching out to restore them, you can recover a meaningful percentage of your decayed link equity. Maintaining a list of your most valuable backlinks and periodically checking their status is a best practice for any site that has invested significantly in link building.
Do’s and Don’ts: Link Decay
Related SEO Terms
TL;DR: The gradual loss of backlinks over time as linking pages are removed, updated, or go…
If you remember one thing — focus on how Link Decay affects your users first, then optimise for search engines second.
