Increasing domain authority (DA) involves consistent effort in SEO, content creation, and link building. Start by optimizing on-page SEO—use clean URLs, proper meta tags, and structured data. Create high-quality, valuable content that naturally attracts backlinks. Build relationships for guest posting and outreach to earn authoritative links. Ensure your website loads quickly, is mobile-friendly, and has a secure HTTPS connection. Regularly audit and fix technical SEO issues. Avoid spammy links and maintain a healthy backlink profile. Share content on social media to boost visibility. Over time, these strategies will help improve your DA and overall search engine ranking.