A drop in Domain Authority (DA) can result from multiple factors, and understanding these causes is essential for recovery. One common reason is a change in Moz's algorithm, which updates its metrics periodically, leading to fluctuations even if nothing has changed on your site. Another cause could be the loss of high-quality backlinks or an increase in toxic links, both of which negatively impact your site's authority. Regularly auditing your backlink profile and ensuring it's free from harmful links can help you regain momentum.
It's also important to consider the competitive landscape. If your competitors are improving their SEO strategies, your DA might decline in comparison. Ensure your on-page SEO is optimized, focus on acquiring authoritative backlinks, and maintain strong, relevant content. Consistent improvements to technical SEO and site performance will help stabilize and grow your Domain Authority over time.