One of the most important aspects of successful search engine optimization revolves around choosing the most effective keywords and phrases to strategically populate the contents of a website so that it appears in SERPs generated for those terms. Websites that have already been established are constantly in competition with each other over keywords that they are each trying to rank highly for. Because of this, websites for business start-ups have to single out keywords that manage the delicate balance between being relevant to the businesses' industries and being distinct from the specific concepts that competitors within those industries are already focusing on. It is virtually impossible for a website's owner without the proper tools to make educated guesses about which possible terms are distinct, non-competitive, and industry-relevant all at once, so owners regularly rely on keyword-researching utilities to sift through endless volumes of the necessary search data. The complexity and scope of the data that keyword planners have to parse and interpret, however, has prompted most utilities to append subscription fees to the broad scope of their functionality. Among premium keyword research tools, the most popular are Ahrefs and SEMRush because they provide comprehensive and accurate data reports that are widely seen as justifying their asking prices. Meanwhile, the most recent incarnation of Google's default keyword tool strictly requires the user to input their credit card number and then start a campaign in order to get access to the tool's quality functions. Many options for keyword-researching functionality that are free of charge exist, but they are widely seen as providing data estimates that are nowhere near as comprehensive and reliable as paid alternatives. Various premium utilities such as the aforementioned SEMRush offer users several free uses of their software daily. When it comes to entirely free tools, some are available as browser extensions; these include a utility named Keywords Everywhere. Some users even describe a scheme that essentially "games" Google's keyword service into providing its functionality for "free;" the procedure involves entering the user's credit card information and technically starting a campaign only to immediately pause it. For more information click here https://www.reddit.com/r/SEO/comments/aiueih/newtogooglekeywordtooldoyouhavetopayto/.