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

![Drop In Ahrefs DR](https://www.stanventures.com/news/wp-content/uploads/2025/10/Drop-in-Ahrefs-DR-1024x672.jpg)

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](https://www.stanventures.com/blog/how-to-increase-ahrefs-domain-rating/) 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.

![Increase In Dr Overnight](https://www.stanventures.com/news/wp-content/uploads/2025/10/increase-in-dr-overnight-1024x672.jpg)

## Why You Might Have Seen a Drop

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

![Screenshot 2025 10 17 At 11.46.37 AM](https://www.stanventures.com/news/wp-content/uploads/2025/10/Screenshot-2025-10-17-at-11.46.37-AM-571x1024.png)

- **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](https://www.stanventures.com/blog/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](https://www.stanventures.com/book-free-consultation/) at Stan Ventures