Dualmark
Open-source AEO infrastructure for marketing sites
Dualmark launched on May 13, 2026 with 30 votes, #828 of 20,538 launches that month and more than 95% of that year's launches.
What it does
Your blog ranks #1 on Google. ChatGPT cites your competitor. That's an infrastructure problem. Dualmark gives every page a markdown twin AI agents can read — same URL, two formats, picked at the edge.
Your blog ranks #1 on Google. ChatGPT cites your competitor. Not a content problem — an infrastructure problem. Dualmark gives every page a markdown twin AI agents can actually read. Paste any URL. We fetch it from our edge, run the same engine as @dualmark/cli, and return a 0–125 conformance score with line-item failures. No install. No signup. Want the full UI with framework detection, failed-check breakdowns, and Fix with AI prompts? Open the playground . Dualmark was built and battle-tested at Dodo Payments before it was open-sourced. After rolling it out across the marketing site, AI agent traffic 5×'d in 60 days — without changing a single page of content. Production-ready for early…from dualmark.dev
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