To increase website visibility on Google and Bing:

1. Optimize for SEO by conducting keyword research and implementing on-page SEO, and providing quality content.
2. Pay attention to technical SEO, such as creating sitemaps, using robots.txt, and ensuring a secure, mobile-friendly design.
3. Build quality backlinks and incorporate internal linking for improved website authority.
4. For local businesses, optimize Google My Business and maintain consistent local citations.
5. Maintain an active social media presence to indirectly impact search visibility.
6. Engage in content marketing, including regular blogging.
7. Encourage user reviews for local businesses.
8. Keep website content updated and relevant.
9. Monitor performance with analytics tools.
10. Seek professional SEO assistance if needed, as SEO is an ongoing process.

To increase your website's Domain Authority (DA), focus on creating high-quality content, building high-quality backlinks, optimizing on-page and technical SEO, and improving user experience. Be patient and consistent in your efforts, and remember that DA is one of many metrics used by search engines to rank websites.