Similarweb is a leading digital intelligence platform covering traffic data for 100M+ websites and apps, serving 5,000+ enterprise customers, listed on the NYSE (SMWB), providing website traffic, competitive, and market analysis.
Screaming Frog SEO Spider is a desktop website crawler from the UK; the free version crawls 500 URLs and the $279/year paid license unlocks unlimited crawling and 300+ technical SEO checks.
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.
Duda is a website builder founded in 2009 in Palo Alto, US, built for digital agencies and SaaS platforms, offering 100+ responsive templates, multi-site management and full white-label customization with built-in AI building and SEO tools.
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.
Zoho Sites is the website builder in the Zoho ecosystem, backed by Zoho Corporation, founded in 1996 with 55+ apps and 80M+ users. Drag-and-drop building with SEO tools and deep CRM integration starts at $0, making it a fit for businesses already in the Zoho ecosystem.
IONOS Website Builder is the AI website building tool of the German IONOS Group, with over 8 million customer contracts and entry pricing from EUR 1/month. It bundles domains, email, e-commerce and SEO capabilities for fast European and budget-sensitive launches.
GoDaddy Website Builder is the all-in-one AI site builder from the world's largest domain registrar, serving over 21 million customers with AI page generation, domain binding, business email, and online stores.
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.
Wincher is an SEO rank tracking tool founded in Hamburg, Germany in 2016, offering daily keyword ranking monitoring, white-label reports and site audits, with a free plan tracking around 50 keywords.
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.
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.
SEO Centro is a US SEO tools and marketing service founded in 2014, offering free SEO tools, local SEO optimization and link building services for local businesses and SMBs.
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.
RankTracker is the keyword rank tracking tool of SEO PowerSuite (developed by Link Assistant, founded in 2007 in Latvia), supporting 550+ search engines and regions, with about 500 keywords tracked in the free edition and a one-time Professional license from about $450.
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.
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.
LowFruits is a keyword opportunity finder from Semper Plugins (AIOSEO) that uses real SERP analysis to find "low-hanging fruit" long-tail keywords. The standard plan costs $20.75/month (yearly), with keyword clustering, rank tracking, and 150K low-authority domain data.
Link Assistant is the developer of SEO PowerSuite, founded in 2007, offering an all-in-one desktop toolkit covering rank tracking, website audit, backlink analysis, and link building for 2,000,000+ SEO professionals. The free version is free forever and Professional starts at $349/year.
KWFinder is a low-cost keyword research tool launched by Mangools in 2015 in Slovakia, covering 2.5 billion+ keywords and 65,000+ city-level locations, with an entry price of $29/month for beginners and small teams.
Internet Marketing Ninja is a US SEO tools and services provider offering 5 core modules - keyword research, rank tracking, site audits, link analysis, and competitor research - combined with human link-building and content strategy services for SEO teams and SMBs.
Cognitive SEO is a US-based SEO toolset focused on content optimization and backlink analysis, offering Content Intelligence, rank tracking, and site audits from about $49.95/month per tool.
WooRank is an SEO website audit tool founded in Ghent, Belgium in 2011, generating a 0-100 overall score and optimization recommendations from a URL, covering technical SEO, backlinks, mobile and more.
Seobility is an SEO audit and page optimization tool founded in Germany in 2014; the free plan crawls 1,000 URLs, Premium starts at EUR 49.90/month and it has over 600,000 registered users.