Best backlink data and the cleanest interface for organic SEO
Ahrefs is the strongest data product in SEO, particularly for backlinks, wrapped in the cleanest interface in the category. Credit limits and the absence of a free tier are the main friction.
Best all-in-one platform when you run paid and organic together
Semrush is the broadest marketing research platform: organic and paid search, content, social and PR in one subscription. That breadth is its advantage and the reason it feels cluttered next to Ahrefs.
Best on-page optimisation for teams briefing writers at volume
Surfer scores drafts against the pages currently ranking for a keyword, giving writers a concrete target. Excellent as a content workflow tool, and easy to over-apply into formulaic writing.