Learn how to build a simple validation website for your side project: define the offer, write clear copy, set up signup forms, and track results.

A side project validation page is a single, focused web page that helps you learn whether your idea is worth pursuing—before you spend weeks building. It should quickly explain what you’re offering and invite the right people to take one clear action.
A validation page is not a full product website, a detailed feature tour, or a portfolio of everything you might build someday. It’s closer to a “testing page” for your idea: one promise, one audience, one next step.
It is a place to:
Use a validation page when you’re still uncertain about any of these:
Success isn’t “going viral.” It’s hitting a learning goal, such as: “At least 20 qualified people join the waitlist this week,” or “5 people book a call after seeing the pricing.” Vanity metrics (pageviews, likes) are only useful if they help you compare experiments.
The fastest way to waste a validation page is to:
Think of your validation page as a simple experiment: a clear promise, a clear ask, and a clear way to learn what to do next.
A validation page works best when it answers one clear question. If you try to measure everything at once, you’ll get noisy results and vague next steps.
Choose the single most important uncertainty to reduce right now:
Commit to just one. For example, don’t test pricing and audience simultaneously unless you can split traffic cleanly.
Write your audience as a specific slice you can actually reach:
“Freelance designers who send 5+ invoices/month” beats “small businesses.”
A tight segment helps you write sharper copy, choose the right communities/ads, and interpret results without guessing.
Your hypothesis should connect audience + promise + measurable behavior.
Template:
“If we show [audience] a page that promises [outcome], then at least [number/%] will [take action] within [timeframe] from [traffic source].”
Example:
“If freelance designers see an invoicing assistant that ‘sends payment reminders automatically,’ then 8% of visitors from r/freelance will join the waitlist within 10 days.”
Set a short window (often 7–14 days) and decide exactly how you’ll get visitors. A goal without a traffic plan becomes “validation by vibes.”
Keep it concrete: “3 partner newsletters + 2 relevant Reddit posts + $50 in targeted ads” is better than “social media.”
If you want, capture your hypothesis and traffic plan in a simple checklist and keep it next to your analytics setup (/blog/set-up-analytics-and-event-tracking).
A side project validation page has one job: help the right people instantly understand what you’re offering and why it matters to them. Your value proposition is the sentence (or two) that does that heavy lifting.
Use the language your audience already uses in forums, reviews, and Slack groups. If you say “automate workflows,” but they say “I waste hours copying data between tools,” mirror their phrasing. This makes visitors feel understood and reduces the “wait, is this for me?” moment.
A good value proposition describes the result someone gets after using your product.
Bad: “AI-powered scheduling with smart templates.”
Better: “Book client meetings in half the time—without the back-and-forth emails.”
You can add features later on the page, but your first promise should be a benefit someone can picture.
Clarity beats broad appeal. Add one short line that names the audience and optionally excludes a group that won’t benefit.
Example: “For freelance designers managing 3–10 active clients. Not built for large agencies with dedicated project managers.”
This improves signup quality and helps you interpret results when you measure validation metrics.
Different doesn’t mean fancy. It means “why this instead of what I already do?” Pick one or two points you can actually support during validation.
Examples:
Keep it tight: one clear promise, one clear audience, one clear reason to choose you.
Your validation page isn’t a mini website. It’s a focused tool to answer one question: “Do the right people care enough to take the next step?” The best structure is the one that removes choices and makes that next step obvious.
Use a straightforward flow that matches how people decide in seconds:
If you’re unsure what to put where, think of it like this: promise → action → reassurance → explanation → objections.
For early validation, aim for a page people can understand without scrolling much. One screen is ideal, one scroll is fine. The more they scroll, the more chances they have to abandon.
A practical approach:
Pick a single action and make it the default everywhere. For most validation pages, that’s:
Place the same CTA:
Multiple CTAs (download, book, buy, follow, contact) dilute your data and confuse visitors. If you must include a secondary option, make it clearly secondary (smaller, less prominent) and keep it aligned with your goal—e.g., “See examples” rather than “Book a call.”
Your validation page isn’t the place for clever. It’s the place for clarity. Assume visitors will skim for 10 seconds and decide: “Is this for me, and what do I do next?”
Use a simple formula: Benefit + audience (optionally add a proof-ish detail you can stand behind).
Examples you can adapt:
Follow with a supporting line that removes ambiguity:
“A lightweight tool that [does X] so you can [outcome], without [common pain].”
Keep bullets concrete and outcome-focused. Avoid feature labels like “AI-powered dashboard” unless you can clearly connect them to value.
Good bullet patterns:
If you can’t write at least three bullets without vagueness, your concept may be too fuzzy—tighten it before you drive traffic.
Replace generic claims with measurable or observable language:
Tiny text near your form and CTA can boost signups.
Examples:
Clarity beats persuasion: make it easy for the right people to say “yes” quickly.
Your call to action (CTA) is the moment of truth on a side project validation page. A good CTA makes it easy for the right people to raise their hand—without forcing a commitment they’re not ready for.
Choose one primary CTA and commit to it. Mixing multiple “main” buttons usually dilutes results.
Common options:
As a rule: the earlier you are, the lower the ask should be. You can always follow up to deepen commitment.
Only collect what you will actually use in the next 1–2 weeks. For many projects, that’s just an email.
If you need segmentation, add one optional field (e.g., “Role” or “Company size”). Avoid long forms that feel like a sales intake before you’ve earned trust.
Practical defaults:
After submission, don’t dump people on a generic confirmation. Use a thank-you state that guides the next step:
Also set expectations: tell them what they’ll receive and when (e.g., “We’ll email early access invites in January”). A clear CTA plus a clean, low-friction flow turns curiosity into measurable validation.
Trust is a conversion feature. The goal isn’t to “sound big”—it’s to help a visitor believe you’re real, you understand their problem, and you can deliver what you’re offering.
If you don’t have customers yet, don’t pretend you do. Instead, show something concrete:
A simple line like “Built by a former [role] who ran into this problem weekly” can outperform vague hype.
Social proof works best when it’s specific and verifiable. Only add it if you can stand behind it:
If you’re early, replace testimonials with “Seeking 10 design partners” and explain what they get.
Visitors often scan for basic legitimacy markers:
A quick 3-step block reduces uncertainty:
Keep it plain, specific, and aligned with what you can deliver right now.
Good design for a validation page isn’t about being fancy—it’s about removing friction so visitors can understand the idea and take one clear action.
If you’re testing whether anyone cares, a subdomain is often enough (e.g., yourname.notion.site or yourproject.carrd.co). It’s fast, free/cheap, and avoids commitment.
Buy a domain when you’re confident you’ll keep iterating on the idea, you want the page to feel more “real,” or you plan to run ads and want a cleaner URL. A good middle path: buy the domain but point it to a simple hosted page so you can ship today.
Most validation traffic arrives on phones, so design for small screens first:
Pick one visual that supports understanding:
Avoid stock photos that don’t match the product—they reduce trust.
Accessibility also improves conversions:
You don’t need a “perfect” stack to validate an idea—you need something you can ship quickly, change easily, and measure.
If your goal is to get a pre-launch landing page live today, these are the usual winners:
If you want the speed of no-code but still want a real application foundation later, a vibe-coding platform like Koder.ai can be a practical middle ground: you describe the landing page (and any follow-on MVP flows) in chat, iterate quickly, and still end up with a deployable app you can evolve—without committing to a full traditional dev cycle on day one.
Speed vs. customization is the main tension. Carrd/Notion setups publish quickly but can feel limiting once you want custom sections, A/B tests, or advanced forms.
Cost vs. learning curve is the second. Webflow/Framer can replace a developer for many cases, but you’ll spend time learning their editor.
Whatever you use, make sure the page loads over SSL (https). It affects trust, form submissions, and some analytics/referrer data.
If you’re using a template or simple code site, choose hosting that offers one-click SSL (common on Netlify/Vercel/GitHub Pages).
Even for a one-day build, set up:
These small details increase clicks and signups without adding much work.
If you don’t measure actions, you can’t validate anything—you’re just collecting opinions. Your goal here is simple: confirm that real visitors take the next step (click, sign up, or book), and understand where those visitors came from.
Choose a lightweight setup you’ll actually check daily: GA4, Plausible, or a similar tool.
After installation, verify it’s working by opening your validation page in an incognito window and confirming you see an active visitor or a new page view in the dashboard. Do this before you spend time driving traffic.
Page views are not validation. Track actions that signal interest:
Most tools let you track button clicks and form submissions without code, but double-check that the event fires only once per action (no double-counting when a page reloads).
UTM tags let you see what’s working without guessing. Create a habit: every tweet, post, community comment, and small ad gets a tagged link.
/your-page?utm_source=twitter&utm_medium=social&utm_campaign=validation&utm_content=post-1
Keep the naming consistent (e.g., always use twitter, not sometimes x). Consistency matters more than perfection.
Create a basic spreadsheet with one row per day. Track: sessions, CTA clicks, signups, bookings, and conversion rate (signups ÷ sessions). Add columns for your top UTMs so you can spot winners quickly.
The point isn’t fancy reporting—it’s making the next decision obvious: which channel to repeat, which message to rewrite, and whether your hypothesis is holding up.
A validation page only works when the right people see it. The goal isn’t big traffic—it’s qualified traffic that resembles your future customers.
Pick channels where your audience already hangs out, and where you can show intent (not just impressions):
People are far more receptive when you’re transparent. Instead of “Sign up for my product,” try:
“I’m validating an idea to help [audience] with [pain]. I built a 1-page preview and I’m looking for feedback: what’s missing, what’s unclear, and would you use it?”
That framing earns clicks and comments—and comments are data.
Keep experiments focused and cheap. Test one variable at a time for a short window:
Decide what “enough signal” looks like so you don’t endlessly tweak:
Small experiments, clear thresholds, and tight feedback loops beat big launches every time.
A validation page doesn’t work when it’s published—it works when you follow up. A signup is a signal, not a sale. Your next iteration should be based on what people did (clicked, signed up, replied), not what you hope they meant.
Before you look at numbers, decide what each outcome means. For example: if you hit your signup goal, you build a small MVP. If you get traffic but weak conversion, you refine the niche or rewrite the offer. If you get signups but no one replies to follow-ups, the offer might be unclear or not urgent.
A simple rule:
Send a short email within 24 hours. Keep it personal and easy to reply to—no surveys to start.
Ask one question that helps you understand intent, like:
“What were you hoping this would help you do?”
Then offer an optional next step:
If you’re not ready for calls, share a small update every week or two (progress, a mockup, a new angle) so you can measure continued interest.
Write down what you learned in a running doc: top sources of traffic, best-performing headline, common objections from replies, and where people dropped off.
Then update one major thing at a time (headline, CTA, audience, or pricing signal) and rerun the experiment. If you already have a plan for monetization, consider adding a simple “starting at” range or link to /pricing to test willingness to pay.
For a structured next-pass plan, keep a lightweight checklist handy (see /blog/launch-checklist).