Surfer SEO is a leading content optimization platform that analyzes 500+ ranking factors to help content rank higher. The Content Editor provides real-time suggestions on keyword density, structure, word count, and LSI terms, with a live content score. SERP Analyzer reveals competitor strategies for any keyword. Surfer AI generates SEO-optimized articles and outlines. Grow Flow connects to Google Search Console and provides weekly optimization tasks. Topical Map visualizes topic relationships to build authority. The platform integrates with WordPress, Google Docs, and Contentful. Lite ($29/mo) includes 3 Content Editor credits; Essential ($89/mo) adds 7 credits; Advanced ($179/mo) provides 25 credits. Enterprise available for high-volume needs.