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Day 3: Build Your Opt-In Form & Landing Page

Pick a platform, authenticate your domain and build a one-goal landing page that converts visitors into subscribers.

You’ve got a promise and a lead magnet. Now you need a place where strangers become subscribers. Today you’ll set up your email platform, build an opt-in form, and create a simple landing page designed to do one job: get the signup.

Step 1: Choose an email platform (quickly)

Don’t lose a week comparing features. Most mainstream email service providers handle the basics well: forms, landing pages, automations, and tagging. A few broad categories to consider:

  • Creator-focused platforms (Kit, Beehiiv) lean into newsletters, audience growth and monetization features.
  • Small-business all-rounders (MailerLite, Mailchimp, Brevo, AWeber, GetResponse) balance ease of use with marketing tools.
  • Automation-heavy tools (ActiveCampaign) shine when you need complex, behavior-based workflows.
  • Self-hosted or DIY setups (Sendy on top of Amazon SES) can be budget-friendly at scale but need more technical care.

Pick one that has a free or low-cost starting option, supports automations, and lets you export your list. You can always migrate later.

Watch out: Before you send a single email, set up authentication for your sending domain (SPF, DKIM and DMARC). Major mailbox providers expect it, especially for bulk senders. Our DMARC & SPF Builder helps you generate the records, and your email platform will show you the DKIM record to add.

Step 2: Build your opt-in form

Keep the form simple. Every extra field adds friction.

  • Fields: email only, or first name plus email if you’ll personalize
  • Headline: the name of your lead magnet or the core benefit
  • One line of expectation: “Plus my weekly tips every Tuesday. Unsubscribe anytime.”
  • Button text: specific and active, like “Send me the checklist” instead of “Submit”
  • Privacy link: a link to your privacy policy

Single or double opt-in?

Double opt-in asks new subscribers to confirm by clicking a link. It usually means slightly fewer signups, but a cleaner list with fewer typos, bots and fake addresses. Single opt-in grows faster but needs stronger bot protection. If you’re worried about spam signups or you’re collecting from audiences where proof of consent matters, double opt-in is a smart default.

Step 3: Create a focused landing page

A landing page is a page with one goal. No menu, no sidebar, no ten links to your other stuff. Use this proven structure:

  1. Headline: the outcome. “Get your first 100 Etsy sales without paid ads.”
  2. Subheadline: what they get. “Download the free 12-point Listing Checklist, plus a practical tip every Tuesday.”
  3. Form: above the fold on desktop and near the top on mobile.
  4. Three bullets: what’s inside or what they’ll be able to do.
  5. A little credibility: who you are in one or two sentences, and any genuine testimonials you have.
  6. Second form or button: at the bottom for people who scroll.

Example bullets

Inside the checklist you’ll learn: the photo mistake that makes listings look amateur, the 3 title tweaks that help buyers find you, and the simple pricing check to run before you publish.

Step 4: Set up the thank-you page

After signup, don’t waste the moment. Your thank-you page should:

  • Confirm what happens next (“Check your inbox. Your checklist is on its way.”)
  • If using double opt-in, tell them to click the confirmation link
  • Suggest adding your address to their contacts or moving your email to their main inbox
  • Offer one next step: a popular article, a community link, or a low-cost starter product

Pro tip: Put your form in more than one place. A landing page for links, an inline form at the end of blog posts, a link in your social bios and a subtle pop-up or slide-in (triggered after some engagement, not the instant someone lands) each catch different visitors.

Step 5: Test like a stranger

Before you share anything, sign up with a personal email address and walk through the whole flow:

  • Does the form work on mobile?
  • Does the confirmation email arrive, and does it land in the inbox?
  • Does the lead magnet link work?
  • Is the tag or segment applied correctly in your platform?
  • Is your physical mailing address and unsubscribe link in the email footer?

Today’s homework: Pick your platform, authenticate your sending domain, build a form and a one-goal landing page, and connect the lead magnet delivery email. Then test the whole thing on your phone as if you were a brand-new subscriber.

Key takeaways

  • Choose a platform fast; make sure it supports automations and list export.
  • Authenticate your domain with SPF, DKIM and DMARC before sending.
  • Fewer form fields, specific button text and clear expectations win.
  • A landing page has one job. Remove every distraction from it.
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