Google Trends is Google's free search trend analysis tool, launched in 2006, showing keyword interest as a normalized 0-100 index. It supports 5-keyword comparison, regional breakdown, and real-time hot topics, making it an entry-level staple for SEO and market research.
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Semrush is an omnichannel digital marketing platform founded in Boston, USA in 2008 with 25B+ keywords and 43B+ backlinks, serving over 10 million users and listed on the NYSE in 2021.
Ahrefs is an SEO tool suite headquartered in Singapore, founded in 2010, with a backlink index of 42 billion+ web pages and a 10 billion+ keyword database, widely used by SEO professionals worldwide.
Wordtracker is a legacy keyword research tool launched in the United Kingdom in 1998, aggregating search terms from Google, YouTube, Amazon and more, with search trend and competitor keyword analysis.
WebCEO is a comprehensive SEO tool platform with over 20 years in the industry, offering keyword research, rank tracking, website audits, competitor analysis, and white-label reporting for small businesses and SEO agencies.
SEO Review Tools is a free SEO tool platform founded in 2013 and headquartered in the Netherlands, offering 82 real-time SEO and AI tools with over 180,000 members and an average rating of 9.3/10.
SEOMator is a Czech SEO audit platform founded in 2011, integrating 23 tools that check 21 issues per page, with white-label reports and AI rank tracking starting at $49/month.
Searchmetrics is an enterprise SEO and content analytics platform founded in Berlin, Germany in 2007, known for 0-100 content scoring, keyword research and rank tracking, and acquired by BrightEdge in 2021.
SE Ranking is an all-in-one SEO platform founded in 2013, bundling 50+ tools including rank tracking, website audit and backlink monitoring, with a 14-day free trial and white-label reports, a cost-effective choice for agencies.
Neil Patel SEO is the SEO and content marketing platform founded by American marketer Neil Patel; the free SEO Analyzer and Ubersuggest cover keyword research, site audits, and rank tracking, with paid plans from $12/month.
Moz is an SEO tool brand founded in 2004 in Seattle, creator of the DA/PA 0-100 metrics; Moz Pro, MozBar, and Moz Local cover keyword research, backlink analysis, and local SEO.
Mangools is an affordable SEO tool suite founded in 2014 in Slovakia. KWFinder covers 2.5 billion+ keywords and LinkMiner covers 9.5 trillion backlinks, serving 2.8 million+ users as a high-value choice for beginners and small teams.
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