{"id":35326,"date":"2022-09-26T13:56:27","date_gmt":"2022-09-26T06:56:27","guid":{"rendered":"https:\/\/adsmo.vn\/cong-cu-tim-kiem-tu-khoa\/"},"modified":"2025-07-18T17:23:55","modified_gmt":"2025-07-18T10:23:55","slug":"top-9-free-keyword-research-tools-to-help-implement-effective-seo","status":"publish","type":"post","link":"https:\/\/adsmo.vn\/en\/top-9-free-keyword-research-tools-to-help-implement-effective-seo\/","title":{"rendered":"TOP 9 free keyword research tools to help implement effective SEO"},"content":{"rendered":"<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Keyword research is the most important step in any SEO campaign. The advent of <strong>keyword search tools<\/strong> has made it easier to own a complete set of keywords. Besides familiar powerful paid keyword research tools such as Ahrefs, Semrush,&#8230; In this article, Adsmo will share with you <strong>TOP 9 free keyword search tools<\/strong>, the most popular and easy to use that small businesses with limited marketing budgets cannot ignore. <\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Let&#8217;s learn about 9 free keyword research tools that are good for <a href=\"https:\/\/adsmo.vn\/en\/giai-phap\/website-seo-services\/\"><strong>SEO<\/strong><\/a> below and choose the right tool for your business:<\/span><\/p>\n<h2 style=\"text-align: justify\">1. Google Search Box<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\"><strong>Google Search Box<\/strong> is a very familiar keyword suggestion tool, which operates based on Google Autocomplete Suggestions technology (automatically completes commands). To search for keywords, you just need to enter the keyword you want to research and do not press the search button. Google will immediately suggest long-tail keywords related to the main keyword. <\/span><\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-26013 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/google-search-box.jpg\" alt=\"google-search-box\" width=\"650\" height=\"524\" \/><\/p>\n<h2>2. Google \u201cPeople Also Ask\u201d<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Another equally effective keyword research tool from Google is <strong>People Also Ask<\/strong>. The tool provides you with a list of questions that users search for a lot. When you click on any question, the list will immediately add more questions. Now you just need to continue clicking and selecting until you have completed the full list of related questions for your content.<\/span><\/p>\n<p><img decoding=\"async\" class=\"size-full wp-image-26014 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/google-people-also-ask.jpg\" alt=\"google-people-also-ask\" width=\"650\" height=\"403\" \/><\/p>\n<h2>3. Google Trends<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">For SEOers, <a href=\"https:\/\/trends.google.com\/trends\/?geo=VN\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>Google Trends<\/strong><\/a> is a great keyword research tool. Unlike the keyword research tools above, Google Trends doesn&#8217;t actually suggest keywords for you to target. Instead, it tells you how interested Google users have been in a particular search topic in the past and present. <\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Some features you need to pay attention to when researching keywords on Google Trends.<\/span><\/p>\n<ul>\n<li><b>Compare: <\/b><span style=\"font-weight: 400\">You can compare keywords with each other to determine the level of interest of target customers over time.<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26015 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/google-trends-01.jpg\" alt=\"google-trends-tinh-nang-so-sanh\" width=\"650\" height=\"438\" \/><\/p>\n<ul>\n<li style=\"text-align: justify\"><b>Related queries: <\/b><span style=\"font-weight: 400\">Google Trends will provide a list of related queries. From there, you will have more ideas to add to your content and marketing strategy.<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26016 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/google-trends-02.jpg\" alt=\"google-trends-tinh-nang-truy-van-lien-quan\" width=\"650\" height=\"400\" \/><\/p>\n<ul>\n<li style=\"text-align: justify\"><b>Keyword trends by country or worldwide<\/b><span style=\"font-weight: 400\">: This data helps you determine the level of interest in keywords\/topics by region.<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26017 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/google-trends-03.jpg\" alt=\"google-trends-tinh-nang-xu-huong-tu-khoa-theo-khu-vuc\" width=\"650\" height=\"220\" \/><\/p>\n<h2 style=\"text-align: justify\">4. Google Keyword Planner<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">The list of best free keyword research tools would not be complete without <a href=\"https:\/\/ads.google.com\/intl\/en_cy\/home\/tools\/keyword-planner\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>Google Keyword Planner<\/strong><\/a>. As a tool provided by the &#8220;search giant&#8221;, Keyword Planner is one of the most accurate and reliable keyword lookup sources for SEOers and advertisers.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">To start using Google Keyword Planner, you need to create a Google Ads account. The tool will suggest keywords and specific data for each keyword such as average monthly searches, competition, bid estimates, etc.<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26018 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/google-keyword-planner.jpg\" alt=\"google-keyword-planner\" width=\"650\" height=\"456\" \/><\/p>\n<h2 style=\"text-align: justify\">5. AnswerThePublic<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\"><a href=\"https:\/\/answerthepublic.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>AnswerThe Public<\/strong><\/a> is a great tool for discovering question-based keywords that people are searching for. The free version of AnswerThePublic allows you to research keywords without creating an account. All you have to do is enter your topic, brand or product, select your region, language and click Search. <\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">The results will be displayed as a chart or list and classified according to the following criteria:<\/span><\/p>\n<ul>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">According to the questions (What, When, Where, How,&#8230;)<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26019 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/answer-the-public-01.jpg\" alt=\"answer-the-public-01\" width=\"650\" height=\"450\" \/><\/p>\n<ul>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">According to gender from\u00a0<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26020 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/answer-the-public-02.jpg\" alt=\"answer-the-public-02\" width=\"650\" height=\"454\" \/><\/p>\n<ul>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">Compare<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26021 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/answer-the-public-03.jpg\" alt=\"answer-the-public-03\" width=\"650\" height=\"440\" \/><\/p>\n<ul>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">Alphabetical<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26022 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/answer-the-public-04.jpg\" alt=\"answer-the-public-04\" width=\"650\" height=\"399\" \/><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">With the free version, you can perform up to 3 searches per day. <\/span><\/p>\n<h2 style=\"text-align: justify\">6. QuestionDB<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\"><a href=\"https:\/\/questiondb.io\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>QuestionDB<\/strong><\/a> is a great keyword research tool for your articles. The results are mainly collected from Q&#038;A websites like Reddit and Quora,&#8230; These are all questions that users are interested in that are related to your keywords. <\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">QuestionDB will filter questions by popularity or topic and group them together. You can create content that resonates with your target audience by providing answers to questions they&#8217;re asking on Reddit.<\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26023 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/question-db.jpg\" alt=\"question-db\" width=\"650\" height=\"515\" \/><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">With a free account, you&#8217;ll get 50 results per search.<\/span><\/p>\n<h2 style=\"text-align: justify\">7. Ahrefs Keyword Generator<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\"><a href=\"https:\/\/ahrefs.com\/keyword-generator\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>Ahrefs Keyword Generator<\/strong><\/a> is a free keyword research tool developed by Ahrefs. If you don&#8217;t know, Ahrefs is one of the most powerful and popular SEO optimization tools today. So what&#8217;s special about Keyword Generator?<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">After entering a keyword and selecting a country, the system immediately displays a list of the top 100 keywords including the following parameters:<\/span><\/p>\n<ul>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">Long keyword list<\/span><\/li>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">Keyword difficulty is arranged by being rated on a scale of 1 to 100<\/span><\/li>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">Search Volume<\/span><\/li>\n<li style=\"text-align: justify\"><span style=\"font-weight: 400\">Result update time<\/span><img decoding=\"async\" class=\"alignnone size-full wp-image-26024 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/ahrefs-keyword-generator.jpg\" alt=\"ahrefs-keyword-generator\" width=\"650\" height=\"575\" \/><\/li>\n<\/ul>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Ahrefs Keyword Generator is often used to identify long-tail keywords and target less competitive phrases. Besides Google, you can also find keywords from other platforms such as Bing, Youtube and Amazon.<\/span><\/p>\n<h2 style=\"text-align: justify\">8. SEMrush Keyword Magic Tool<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\"><a href=\"https:\/\/ahrefs.com\/keyword-generator\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>SEMrush Keyword Magic Tool<\/strong><\/a> is a free keyword research tool provided by the SEO giant &#8211; SEMrush. The tool provides users with a rich data source with more than 20 billion keywords from 120 different countries.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">With a free account, you will have 10 searches per day with reports including:<\/span><\/p>\n<ul style=\"text-align: justify\">\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Monthly Search Volume<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Keyword difficulty to rank organically in Google&#8217;s top 10<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Competition density between advertisers in their PPC campaigns<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Cost per click (CPC)<\/span><\/li>\n<\/ul>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26025 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/semrush-keyword-magic-tool.jpg\" alt=\"semrush-keyword-magic-tool\" width=\"650\" height=\"302\" \/><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">In addition, Keyword Magic Tool also has useful sorting features such as:<\/span><\/p>\n<ul style=\"text-align: justify\">\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Arrange keywords into small groups according to specific topics<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Use smart filters to narrow or broaden your search<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">View related keywords by topic, semantics, or similar spellings<\/span><\/li>\n<\/ul>\n<h2>9. Keyword Tool Dominator<\/h2>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\"><a href=\"https:\/\/www.keywordtooldominator.com\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\"><strong>Keyword Tool Dominator<\/strong><\/a> gives you keyword data from major platforms like Google, Youtube, Amazon, Walmart, Bing, Etsy, and eBay. This is considered an outstanding resource for sellers and multi-channel marketers who want to rank high on Google and other search engines. <\/span><\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-26026 aligncenter\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/keyword-tool-dominator-01.jpg\" alt=\"keyword-tool-dominator-01\" width=\"650\" height=\"461\" \/><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Keyword Tool Dominator is a fast, easy-to-use tool, but the free version limits users to only 3 searches per day. <\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">The tool also provides frequency data in the form of a graph.<\/span><\/p>\n<p style=\"text-align: center\"><span style=\"font-weight: 400\"><img decoding=\"async\" class=\"alignnone size-full wp-image-26027\" src=\"https:\/\/adsmo.vn\/wp-content\/uploads\/2021\/10\/keyword-tool-dominator-02.jpg\" alt=\"keyword-tool-dominator-02\" width=\"650\" height=\"384\" \/><\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">With over 300,000 users, Keyword Tool Dominator is a great tool to discover what your target audience is really searching for and implement them into your SEO and Content strategies.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Keyword research is the foundation for a successful <strong>SEO strategy<\/strong>. If you need to use SEO services, please contact <strong>Adsmo<\/strong> immediately for specific advice. <\/span><\/p>\n<p>See more:<\/p>\n<ul>\n<li><a href=\"https:\/\/adsmo.vn\/en\/what-is-semantic-search\/\">What is Semantic Search?<\/a><\/li>\n<li><a href=\"https:\/\/adsmo.vn\/viet-bai-chuan-seo\/\">8 steps to write SEO-standard articles to help boost rankings and traffic to your website <\/a><\/li>\n<\/ul>\n<div class=\"entry-contentsss\">\n<p>ADSMO &#8211; INFORMATION TECHNOLOGY &#038; MARKETING solution, providing customized Enterprise Software solutions, consulting on building digital platforms with the mission:<br \/>\n<strong><b>TOTAL solution, BREAKTHROUGH development &#8211; Optimizing COSTS &#8211; Increasing PROFITS<\/b>. We are committed to providing you with:<\/strong><\/p>\n<ul>\n<li>Management solutions tailored to your business needs.<\/li>\n<li>Easy-to-use and efficient systems.<\/li>\n<li>Professional customer support services.<\/li>\n<\/ul>\n<p><b>Contact ADSMO now for a free consultation:<\/b><\/p>\n<ul>\n<li>Address:<strong><a href=\"https:\/\/www.google.com\/maps\/place\/ADSMO+Digital+Marketing+Marketing+Service+Traffic\/@20.91282,106.6718193,17z\/data=!3m1!4b1!4m5!3m4!1s0x314a7b6a35be4ead:0xae645af55cbb86de!8m2!3d20.91282!4d106.674008\" target=\"_blank\" rel=\"nofollow noopener\">8th Floor, HD Tower Building &#8211; 22 Pho Moi &#8211; Thuy Nguyen Ward &#8211; City. Hai Phong<\/a><\/strong><\/li>\n<li>Website:\u00a0<strong><a href=\"https:\/\/adsmo.vn\/en\/\">https:\/\/adsmo.vn<\/a><\/strong><\/li>\n<li>Email:\u00a0<strong><a href=\"mailto:info@adsmo.vn\">info@adsmo.vn<\/a><\/strong><\/li>\n<li>Hotline:\u00a0<strong><a href=\"tel: 0356105388\">0356 105 388<\/a><\/strong><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Keyword research is the most important step in any SEO campaign. The advent of keyword search tools&#8230;<\/p>\n","protected":false},"author":34,"featured_media":31337,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[211,218],"tags":[],"class_list":["post-35326","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-goc-chia-se","category-kien-thuc-ve-seo-sem"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>TOP 9 Free Keyword Research Tools for Successful SEO Campaigns<\/title>\n<meta name=\"description\" content=\"TOP 9 best free keyword search tools - 1.Google Search Box 2.Google \u201cPeople Also Ask\u201d 3.Google Trends 4. 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