Yes, SEO is necessary for ranking a website on Google. You must optimize your site for search engines to improve visibility. SEO helps Google understand your content and rank it accordingly. Without SEO, your website may not appear in search results. You should focus on keyword research, quality content, and backlinks to boost rankings. SEO ensures your website is accessible and mobile-friendly. It also improves your site's user experience, which Google values. SEO is essential for staying competitive in search results. By following SEO best practices, you can increase organic traffic and improve your rankings.