Semrush measures Google. Ranklit measures Google and your visibility in ChatGPT, Claude, Gemini and Perplexity — completely free under the Fair-Use model. Here is the honest comparison.
Completely free · 1,000 credits / month · no credit card
Semrush is a strong, established SEO tool — but it has two traits that are increasingly becoming a problem today: it is paid (often several hundred euros per month per seat) and it is blind to the AI layer. Whether ChatGPT or Perplexity recommends your brand never shows up in any Semrush report.
This is exactly where Ranklit comes in: the same SEO foundation, plus a completely new discipline — Generative Engine Optimization (GEO) — and at zero cost. We are honest about it: where Semrush is stronger, we say so.
included · limited · not included
| Feature | Ranklit | Semrush |
|---|---|---|
| GEO Score across ChatGPT, Claude, Gemini & Perplexity | ||
| AI Citation Tracker (who gets cited by AI?) | ||
| llms.txt generator & AI crawler simulator | ||
| AI Readability Score per page | ||
| Technical SEO audit & Core Web Vitals | ||
| Keyword tracking & gap analysis | ||
| Schema.org validation & generation | ||
| Competitor & Share of Voice analysis | ||
| AI content suite (articles, FAQ, ad copy) | ||
| White-label reports for agencies | ||
| Huge keyword & backlink index | ||
| GDPR compliant, hosted in Germany | ||
| Completely free to use |
Comparison based on publicly documented feature sets, as of 2026. Semrush® is a trademark of Semrush Holdings, Inc. and is not affiliated with Ranklit.io.
Choose Ranklit if …
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Many teams combine both — or switch entirely, because the AI layer keeps growing in importance.
Ranklit is a free alternative that combines the classic SEO foundation (audit, keywords, schema, competitors) with a discipline Semrush does not cover: GEO. Ranklit measures your visibility in ChatGPT, Claude, Gemini and Perplexity and is completely free under the Fair-Use model.
Semrush is an established, paid SEO tool with very large keyword and backlink databases for Google. Ranklit additionally focuses on the AI layer: GEO Score, AI Citation Tracker and AI crawlability — and it is free. For pure Google SEO depth, Semrush has a larger data index; for AI visibility, Ranklit is the specialized solution.
For AI visibility, technical SEO audits, keyword tracking and reporting, yes. If you need very large historical backlink databases or a huge keyword-volume archive, Semrush goes deeper there — which is why many teams use Ranklit as a free GEO+SEO complement or as a full replacement.
Yes. Ranklit is free under the Fair-Use model: the full feature set plus 1,000 credits per month, no credit card and no subscription.
The full feature set including a GEO Score across 4 AI models — 1,000 credits per month, no credit card.
Start for free nowNo credit card · 1,000 credits / month · data hosted in Germany