There is no one-size-fits-all answer to this question, as the best SEO tool will vary depending on your industry, niche, and website’s specific needs. That being said, some of the most popular and effective SEO tools include:
1. SEMrush - SEMrush is a comprehensive SEO tool that offers a wide range of features to help you optimize your website for better search engine visibility.
2. Moz - Moz is another comprehensive SEO tool that offers a wide range of features to help you improve your website’s visibility on Google and other search engines.
3. Ahrefs - Ahrefs is a world-leading search engine optimization (SEO) provider that offers features such as content analysis, keyword research, and backlink analysis.
4. Google Analytics - Google Analytics is a free tool that allows you to track the performance and growth of your website traffic and conversion rates.