Verdict
Choose GTmetrix when
- Technical SEO matters to you. Strong technical performance and Core Web Vitals diagnostics, but not a full technical SEO crawler.
- Free tools matters to you. Provides meaningful free page testing, with paid limits for scale.
- Estimated customer scale matters to you. First-party figures indicate substantial adoption and enterprise reach.
Verdict
Choose Scrunch when
- AI-search / GEO matters to you. Core product is explicitly AI-search visibility, citations, brand presence, model comparison and AI-answer optimization.
- GEO readiness matters to you. Site Diagnostics identifies blockers and citeability/retrievability opportunities; AXP can serve agent-ready HTML, but AXP is an Enterprise/custom capability.
- Research depth matters to you. Strong AI-search research and monitoring depth across prompts, models, competitors, citations, sentiment and trends.
- Content execution matters to you. Optimizer/content generation and page optimization are listed; advanced generation is Enterprise and hands-off delivery belongs to AXP.
Read the full reviews: GTmetrix and Scrunch.