A keyword research tool is a software or online platform that helps identify the keywords and phrases that people are searching for in relation to a specific topic or industry. These tools are used to identify the search volume, competition, and potential traffic for specific keywords in order to help optimize website content and improve search engine rankings. Keyword research tools can also be used to identify new keywords, understand the intent behind search queries, and track the performance of specific keywords over time. Some popular keyword research tools include Google Keyword Planner, SEMrush, Ahrefs, and Keywords Everywhere.

Top 10 SEO keyword research tools for agencies

Here are the top 10 SEO keyword research tools for agencies:

• Google Keyword Planner: This free tool from Google is a great starting point for keyword research. It allows you to see the search volume and competition for specific keywords, as well as generate ideas for new keywords.
• SEMrush: This is a comprehensive tool that offers a wide range of features, including keyword research, site audits, and backlink analysis. It also provides a wealth of data on your competitors’ keywords and strategies.
• Ahrefs: Ahrefs is another comprehensive tool that offers a wide range of features, including keyword research, site audits, and backlink analysis. It is known for its large database of backlinks and its ability to identify keyword opportunities.
• Keywords Everywhere: This is a browser extension that provides keyword data and related keywords as you search the web. It can be integrated with other tools like Google Search Console and Google Analytics.
• Moz Keyword Explorer: This tool offers a wide range of features, including keyword research, site audits, and backlink analysis. It also includes a keyword difficulty score, which can help you identify keywords that are more likely to drive traffic to your website.
• SERPstat: This is a comprehensive SEO tool that offers keyword research, site audit, and backlink analysis. It also includes a keyword difficulty score and a keyword research database that is updated daily.
• KWFinder: This tool is designed for keyword research and allows you to find long-tail keywords with low SEO difficulty. It also has a feature that shows the search volume, CPC and PPC competition for a specific keyword.
• UberSuggest: This tool is a keyword research tool that generates a large list of keywords from a single seed keyword. It also shows the search volume, CPC, and competition for each keyword.
• Keyword Tool: This tool generates long-tail keywords from a single seed keyword and also provides search volume, CPC, and competition data.
• Long Tail Pro: This tool is designed for long-tail keyword research and includes a keyword competitiveness score, which helps you identify keywords that are more likely to drive traffic to your website.

These tools are widely used and are considered as the best by most SEO agencies and professionals. But, it’s always good to evaluate and compare them based on your specific needs and requirements.