PageGoblin

PageGoblin is our own product: paste a URL and an AI "Goblin" reads your landing page, scores it across the dimensions that actually move conversion, and hands back a brutal, specific critique. The free report grades a handful of dimensions with a blurred teaser of the rest; paying unlocks the full audit, re-run on a stronger model with prioritised fixes. It's the clearest proof of how we take an idea from vision to a live, revenue-generating product.

Most landing-page feedback is either vague ("make the hero pop") or expensive (hire a consultant). We wanted an instant, opinionated audit that founders would actually act on — which meant getting three hard things right at once: an AI persona sharp enough to be useful without being noise, a scoring rubric grounded in real conversion principles, and a free-to-paid flow that proves value before asking for money.

We own PageGoblin top to bottom — product, prompt design, engineering, and payments. We built it on Astro with React islands, scoring pages across ten dimensions like hero clarity, value-prop specificity, CTA prominence, trust signals, and objection handling. The Goblin persona and audit rubric are engineered prompts running on Claude; the free tier scores a subset and blurs the rest, and unlocking re-runs the audit on a stronger model. Firebase backs the data and serverless functions, and DodoPayments handles checkout — all shipped as a real, running SaaS.