Free SEO & AEO Tools
Tools for the search surface that is actually growing – answer engines like ChatGPT, Perplexity, Claude, and Google AI Overviews. Read the guide, use the checklist, or automate it inside SEM Optimiser.
Available tools
- AEOLLM citation
llms.txt Generator
Generate a valid llms.txt file so ChatGPT, Perplexity and Claude can cite your site accurately. Includes annotated example and full spec.
Open tool → - AEOGoogle SGE
AI Overview Checker
Track your presence in Google AI Overviews and SGE. See when your pages are cited, which queries surface them, and what to fix.
Open tool →
Frequently asked
- Are these tools really free?
- Yes. The landing pages explain the concepts and give you a checklist you can act on immediately. Deeper automation lives in the SEM Optimiser platform, which has a free plan with no credit card.
- Do I need an account?
- No account is required to read the guides and use the checklists. An account unlocks the automated versions – continuous monitoring, bulk generation, and alerts.
- How is this different from Semrush or Ahrefs tools?
- These tools focus on answer-engine optimisation (AEO) – the surface where ChatGPT, Perplexity, Claude and Google AI Overviews decide who to cite. Traditional SEO tools do not measure this yet.
- Will more tools be added?
- Yes. The current focus is AEO wedges – llms.txt, AI Overview tracking, entity-graph checkers, and citation monitoring. Suggest one at hello@semoptimiser.com.
- Can I embed these tools on my site?
- Not yet. Embeddable widgets and an API are on the roadmap for Q4 2026.