Semrush

Semrush is an all-in-one digital marketing platform covering SEO, content marketing, competitor research, PPC, and social media management. It's the most comprehensive data source available for understanding how any website performs in search and where digital marketing opportunities exist. The problem Semrush solves is marketing visibility. Without data, digital marketing is guesswork — you don't know which keywords to target, what your competitors are doing, or why your rankings are fluctuating. Semrush turns those questions into clear, actionable answers. Semrush is the industry standard tool for SEO professionals, digital marketing agencies, content teams, and in-house marketing departments at companies serious about organic and paid search growth. Core features: Organic Research tool showing the exact keywords any website ranks for, with traffic estimates and ranking history. Keyword Magic Tool with a database of 26 billion keywords for identifying search demand and content opportunities. Site Audit with 140+ on-page and technical SEO checks, prioritized by impact on search performance. Pricing: Pro plan at $139.95/month for freelancers and startups. Guru at $249.95/month for agencies and mid-size businesses. Business at $499.95/month for large agencies and enterprises.