A drop in your domain authority (DA) can be attributed to various factors. Here are some common reasons:
Changes in Moz’s Algorithm: Moz, the company that developed the DA metric, periodically updates its algorithm. These changes can affect how DA is calculated, which might lead to fluctuations in your site's DA even if you haven't made any changes to your website.
Loss of Backlinks: If you have lost a significant number of high-quality backlinks, your DA may drop. Backlinks from authoritative and relevant sites play a crucial role in maintaining and increasing DA.
Quality of New Backlinks: If the new backlinks you are acquiring are from low-quality or spammy websites, this can negatively impact your DA.
Competitors' Performance: Your DA is relative to other websites. If your competitors have improved their SEO significantly, your DA might drop in comparison.
Technical SEO Issues: Problems such as slow page load times, broken links, or mobile usability issues can impact your DA. Ensuring your site is technically sound is crucial for maintaining a good DA.