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Build a Landing Page with AI in One Day — Through Custom Domain

August 11, 2026

A landing page is the best first "finish line" in AI building. It takes a day, it plugs directly into the last step of idea validation (the pre-registration test), and the only cost is the domain.

Today's goal: a page on your own domain that collects emails.

Morning — build it (2–3 hours)

With Claude Code installed, start in a new folder:

> Build a landing page. Product: [one-sentence description].
> Sections: headline, problem, solution, email pre-registration form, 3 FAQs.
> Dark theme, mobile responsive. Next.js.

When the first version appears, react to it in plain language. The thing that matters at this stage is copy — the headline decides your conversion rate, not the design:

> Rewrite the headline as "the result the customer gets", not a feature description. Give me 3 options.

Afternoon — ship it (1–2 hours)

  1. Create a free Vercel account, then:
> Deploy this project to Vercel

Claude walks you through the commands; minutes later you have an xxx.vercel.app URL that's live worldwide.

  1. Connect a domain — buy one you like ($10–20/yr), then:
> Show me how to connect the domain I just bought to this Vercel project

A couple of DNS records and you're done.

  1. Make the email form real — wire it to a free database (Neon, via the Vercel Marketplace):
> Store email form submissions in a free database — something available on the Vercel Marketplace.

Evening — 15-minute check

On the live page:

  • Open it on your phone (anything broken?)
  • Submit the email form for real and confirm it saved
  • Check the page title/description (browser tab + link preview)

Total cost

ItemCost
Domain$10–20/yr
Hosting/DB$0 (free tiers)
AI subscriptionthe plan you already have

This page is your validation instrument. If pre-registrations accumulate, it's time to build the real thing. If not, change the headline and run it again. Step-by-step prompts for the whole journey are in the free kit.