About Duelly

Our Mission

Search is changing. Google is no longer the only place people find businesses — AI assistants like ChatGPT, Perplexity, and Google AI Overviews are answering questions directly, and they decide which websites to cite. Most small businesses have no idea whether AI can even find them.

Duelly exists to close that gap. We built a search intelligence platform that scores your website across three dimensions — SEO, AEO (Answer Engine Optimization), and GEO (Generative Engine Optimization) — so you can see exactly where you stand and what to fix. No guesswork, no jargon, just actionable data.

Who We Are

Duelly is built by Fundylogic, a software development studio based in Atlantic Canada. We specialize in building tools that help small and medium businesses compete with larger players in the digital space.

We started Duelly because we saw a problem firsthand: small business owners were paying for SEO audits that gave them a checklist of issues but no context on what actually mattered. Meanwhile, the search landscape was shifting under their feet — AI engines were becoming a major traffic source, and nobody was measuring readiness for that. We decided to build the tool we wished existed.

How Duelly Works

Every Duelly audit follows a rigorous, multi-step process. First, a headless browser crawls your page to extract technical data — response times, schema markup, heading structure, image alt text, internal and external links, Open Graph tags, and more. Then, Google's Gemini AI analyzes your content the same way AI search engines do, evaluating semantic quality, entity density, factual accuracy, and citation likelihood.

We run two parallel AI analyses and average the results for stability. Scores are calculated using site-type-specific weights — because an e-commerce store, a restaurant, and a law firm shouldn't be graded the same way. The result is three scores (SEO, AEO, GEO) plus prioritized, platform-specific fix instructions you can act on immediately.

For a detailed breakdown of our scoring methodology, see our How We Score page.

Our Data Sources

Duelly integrates data from trusted, industry-standard sources to give you the most complete picture:

  • Google Gemini AI — powers our content analysis, scoring the same signals that AI search engines evaluate when deciding which sources to cite.
  • Moz Link Explorer API — provides Domain Authority scores, backlink profiles, and spam scores for competitive analysis.
  • Serper API — delivers real-time Google search results for our Keyword Arena, showing you exactly where you rank from a neutral perspective.
  • Google PageSpeed Insights — the same performance metrics Google uses to evaluate your Core Web Vitals.

What Makes Duelly Different

AI-Native Scoring

We don't just check SEO boxes. We measure whether AI engines can understand and cite your content — something traditional SEO tools ignore entirely.

Site-Type Awareness

A restaurant gets different advice than a law firm. Our AI detects your business type and adjusts scoring weights and recommendations accordingly.

Platform-Specific Fixes

Every fix instruction is tailored to your platform — WordPress, Shopify, Wix, Squarespace, or whatever you're running. No generic advice.

Competitive Context

Your scores mean nothing in isolation. Keyword Arena and Competitor Duel show you exactly how you compare to the sites you're actually competing against.

Privacy & Trust

We take data seriously. Duelly only accesses publicly available information on your website — the same data any search engine or visitor can see. We don't install tracking scripts, we don't require code changes, and we don't store your content beyond what's needed to generate your report. Scan history is tied to your account and can be deleted at any time from your account settings.

For full details, read our Privacy Policy.

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