Surfer

Surfer (Surfer SEO) helps you write content that ranks in Google and gets cited in AI answers. Its best-known feature is the Content Editor: as you write, it scores the draft against the pages that already rank and suggests terms, headings, length and structure in real time.

Features

• Content Editor with a Content Score, plus Surfy, an AI SEO assistant.
• AI visibility tracking: see whether ChatGPT, Gemini, Google AI Overviews, Claude and Perplexity mention your brand for the prompts you care about, with mention gaps and sentiment.
• Content Audit: spots weak or declining pages and suggests what to refresh.
• Topical Map: plans content clusters to build authority on a subject.
• Integrations: internal-linking suggestions, an MCP server, an API on higher plans, and a Chrome extension.
• Free extras: an AI detector, an AI humanizer and free SEO courses with certificates.

Surfer works with all languages and is part of Positive, a group of marketing software products.

Pricing

As of October 2026 there is no free plan. Paid plans are billed monthly or yearly and differ in how many documents you can create or optimise and how many AI prompts you can track.

Who it's for

Content marketers, SEO specialists and agencies who publish a lot and want data-backed guidance while writing.

Related on SleekNav

Semrush for broader keyword and competitor research, and Google Search Console for your own search data.