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How to Build a Microsite for a Campaign Using AI

Ravish Agrawal

A campaign microsite gives your big idea a home of its own, away from the clutter of your main site. With Gamma, you can turn your campaign brief, a creative concept, or the content already sitting in your connected tools into a clean, responsive microsite in minutes, no code, no template wrestling, no design degree required.

Campaigns run on deadlines, and a microsite is often the centerpiece everything links back to. Waiting on a web team or wrestling a builder eats time you don't have. Gamma's AI agent reads your concept, asks who the campaign is for, and handles the structure and design so you get a focused, on-brand site that drives the one action that matters, fast.


What a Campaign Microsite Needs

Whether it's a product launch, a brand moment, or a seasonal push, a strong campaign microsite shares a few traits:

  • A single focus. One idea, one audience, one action, with nothing competing.

  • A bold hero. The campaign message lands the second the page loads.

  • A clear narrative. The story unfolds as the visitor scrolls.

  • Strong visuals. Imagery and motion that match the campaign's energy.

  • One clear action. Sign up, shop, or learn more, impossible to miss.

The goal is a site that immerses visitors in the campaign and drives them toward a single action. Focus is what makes a microsite outperform a buried page on your main site.


How Gamma Builds Your Campaign Microsite

Start From What You Have

Paste in your campaign brief, upload a creative deck or concept doc, or connect the tools where the content already lives, Notion, Google Docs, your drive. Gamma reads your content and shapes it into a focused microsite, no copy-paste required.

An Agent That Builds the Story

Gamma's agent asks what the campaign is about and who it's chasing, then organizes your material into a responsive, scroll-driven page: a bold hero, the narrative, supporting sections, and a single call to action. Instead of a blank builder, you start from a structured draft.

Design That Works on Every Screen

Balanced layout, confident typography, and a responsive design that looks right on phones and desktops alike. Your microsite looks like a designer built it, because the design decisions are handled for you.


One Microsite, Tailored for Every Channel

A campaign rarely lives in one place. Build your microsite and ask the agent to repurpose it into matching assets, a landing page for paid traffic, a shorter page for email, or a version tailored to a specific audience segment, all from the same source. Keep the look consistent across every touchpoint without rebuilding from scratch. Save the microsite as a template so your next campaign launches from a proven, on-brand foundation.


Step-by-Step: Building a Campaign Microsite in Gamma

Step 1: Define the Campaign

Pull together your core message, the audience, the single action you want, and your creative assets. The tighter the focus, the stronger the microsite.

Step 2: Ask Gamma to Build It

Go to gamma.app and start from the prompt box. Connect your source, upload your creative deck, or paste your brief, then ask for what you need, for example, "Build a microsite for our summer product campaign with a bold hero, the story, and a shop-now call to action."

Step 3: Review the Structure

A typical campaign microsite flows like this:

  1. Bold hero with the campaign message

  2. The story or big idea

  3. Supporting details or features

  4. Social proof or highlights

  5. A gallery or visual moment

  6. A single, clear call to action

Trim anything that pulls focus from the campaign's one goal.

Step 4: Generate

Gamma drafts a formatted, responsive microsite in roughly a minute.

Step 5: Refine

Make the hero and the call to action impossible to miss. Gamma handles the layout, but when you want a visual or button in an exact spot, jump into freeform editing and set it there, or tell AI editing which element to change and how. Add campaign imagery, video, and your action link.

Step 6: Publish and Share

Publish your microsite and share the link across ads, email, and social. Connect a custom domain so the campaign lives at its own memorable web address, and update it anytime as the campaign runs.


Gamma vs. Traditional Tools for Microsites

Gamma vs. Website Builders

  • Setup: Builders ask you to pick templates and configure sections; Gamma starts from your campaign concept

  • Decisions: Builders leave the structure to you; Gamma's agent drafts it for you

  • Speed: Builders take an afternoon or a dev sprint; Gamma drafts in minutes

The honest take: Traditional site builders give you deep control over every element and integration if you want to tinker. Gamma is faster when you want a focused, responsive microsite without learning a platform or waiting on a dev team.

Gamma vs. Canva

  • Templates: Canva offers many layouts; Gamma starts from your campaign and builds around it

  • Output: Canva leans toward static graphics; Gamma produces a live, responsive site you share with a link

The honest take: Canva is great for the campaign's social assets. For a full microsite that immerses visitors and drives one action, Gamma gets you there with less effort.


Tips for a Microsite That Performs

  • Commit to one goal. A microsite that tries to do everything does nothing well.

  • Lead with the big idea. The hero should land the campaign message instantly.

  • Let it breathe. Generous space and strong visuals make the idea feel premium.

  • Match the campaign energy. Tone and imagery should feel like the ads around it.

  • Make the action obvious. Repeat the single call to action as visitors scroll.


Common Questions About AI-Built Microsites

Can I use a custom domain?

Yes. Publish the microsite and connect a custom domain so the campaign lives at its own memorable web address.

Will it work on phones?

Yes. Gamma's pages are responsive, so they look right on phones, tablets, and desktops, where most campaign traffic lands.

Can I add video and rich visuals?

Yes. Add campaign imagery, embed video, and let the layout showcase your creative so the site feels immersive.

Can I update it while the campaign runs?

Absolutely. Open the microsite anytime, swap visuals or copy, and republish, no rebuild required. Save it as a template to reuse for the next campaign.


Build Your Campaign Microsite With Gamma

A microsite should immerse visitors in your campaign and drive one clear action. Hand your concept to Gamma, let the agent shape the structure and design, and publish a responsive site ready to drop into every ad, email, and post.

Try Gamma for free →

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