TL;DRQuick answer
真正免费的SEO工具——不是7天的Ahrefs试用。诚实的限制，没有追加销售，没有试用转付费陷阱。独立网站和小型代理机构真正需要的7款工具。
Evidence & editorial standards
- Author: Shahrukh — Creator of PromptSpace, AI researcher & prompt engineer since 2024. 159+ articles published.
- Methodology: Claims are based on hands-on testing with live AI models, publicly available benchmarks, and official model documentation.
- Last reviewed: by our editorial team.
- Corrections: Spotted an error? Email [email protected] — we credit reporters.
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