If competitors in the same niche are actively gaining backlinks and improving their own domain authority, it can be challenging for a website to see significant changes in its DA without taking proactive steps. It's important to keep in mind that DA is calculated on a rolling basis, so it may take some time for changes to be reflected in the metric. To improve domain authority, webmasters should focus on building a diverse and credible backlink portfolio, you can get help from this website which has very strong SEO, also ensue high-quality content and a trustworthy online presence.