Huge Drop in DR on Ahrefs: Why Domain Ratings Changed Overnight

SEO professionals across industries noticed a sudden drop in Domain Rating (DR) scores last week, sparking concern over what caused such a sharp shift.

After speaking directly with Ahrefs, we can confirm that this wasn’t a random glitch — it was a deliberate update to their DR/UR calculation algorithm rolled out on September 26th.

What Happened

According to Ahrefs, their engineers implemented a new algorithm designed to reflect website authority more accurately based on the most recent backlink data. As a result, many sites experienced either a noticeable drop or increase in DR overnight.

These recalibrations are part of Ahrefs’ ongoing effort to improve the accuracy of their link-based metrics. In simple terms, it’s a reset to reality — websites with inflated link equity saw corrections, while those with stronger, cleaner profiles may have seen positive jumps.

Why You Might Have Seen a Drop

Beyond the algorithm change, Ahrefs pointed out several natural reasons your DR might have declined:

• Other sites improved their link building — even without losing backlinks, your DR can fall if competitors gain stronger links.
• Loss of high-quality dofollow links — when top-tier referring domains remove or nofollow their links, your DR takes a hit.
• Referring domains dropping in DR — if the sites linking to you lost their own authority, they pass less link equity.
• Backlink data recalibration — with updated crawling and link evaluation, some previously valued links may now carry less weight.

How to Recover Your Domain Rating

The short answer? Keep building stronger, cleaner links.

Here’s what Ahrefs (and Stan Ventures) recommend for recovery:

1. Audit your lost links: Use Ahrefs’ Referring Domains or Lost Backlinks reports to identify what’s missing and reclaim where possible.
2. Rebuild strategically: Focus on acquiring dofollow links from high-DR, niche-relevant websites.
3. Monitor referring domains: Keep tabs on their health — if they lose DR, it can trickle down to you.
4. Stay consistent: DR is a relative metric. Even if you maintain your link count, others improving their backlink quality can push your DR lower.

In other words, ongoing link building isn’t optional anymore — it’s essential to maintain your competitive edge.

Stan Ventures’ Take

“Algorithm updates like these remind us that quality link building is a marathon, not a moment. At Stan Ventures, we continuously adapt our backlink strategies to align with evolving metrics and ensure long-term growth, not just vanity scores,” said Krish, the co-founder of Stan Ventures.

If your DR dropped overnight, don’t panic — it’s a sign to double down on authentic, authority-driven link acquisition.

Need help rebuilding your DR after the update? Talk to a link building expert at Stan Ventures

Dileep Thekkethil

Author

Dileep Thekkethil is the Director of Marketing at Stan Ventures, where he applies over 15 years of SEO and digital marketing expertise to drive growth and authority. A former journalist with six years of experience, he combines strategic storytelling with technical know-how to help brands navigate the shift toward AI-driven search and generative engines. Dileep is a strong advocate for Google’s EEAT standards, regularly sharing real-world use cases and scenarios to demystify complex marketing trends. He is an avid gardener of tropical fruits, a motor enthusiast, and a dedicated caretaker of his pair of cockatiels.