For founders and small teams with a landing page
Find the words that get more people to click.
Write a few versions of your headline or button. Janus Gate shows them to your visitors, learns which one converts, and sends more people to the winner. Automatically.
Free to set up · 14 days free, then $19.99/month · Cancel anytime
Built by Carlo Ceriotti, data scientist with 10+ years of A/B testing and pricing algorithms in production.
The problem
Most visitors leave without acting.
You guess
Which headline? Which button text? Opinions differ, and the page stays the way it was written on day one.
Classic A/B tests are slow
Half your visitors keep seeing the weaker version until the test ends, and you need a statistician to read it.
Janus Gate learns as it goes
Better versions get more visitors while the test runs, and the results page tells you in plain words when to act.
See it
Janus Gate in 20 seconds
How it works
Three steps, then it runs on its own
- 1
Write a few versions
Two or three headlines, button labels or paragraphs. Very different ideas work best.
- 2
Janus Gate learns from every visit
Each visitor sees one mix. Versions that get more clicks are shown more often, while the others keep a little traffic so nothing is judged too early.
- 3
Keep the winner
When a block has a winner, we email you. One click copies the change for your developer or AI tool.
What you get
Built for people who aren't statisticians
Works on the page you already have
Webflow, Framer, WordPress, Next.js or plain HTML: one script, no rebuilding your page in another builder.
Set up by your AI assistant
Copy the ready-made instructions into your AI coding tool or send them to your developer. A one-click check confirms everything works.
Results in plain words
Each block says what we know and what to do: wait, keep the winner, or try something new. No p-values.
The real gain, measured
A small random group keeps seeing your original page, so you can see how much better the optimized version does.
Every language, kept apart
Spanish visitors never mix with English ones. Switch language in one click on the results page.
Text and look
Test the words, and also how they look: a button's color, size or style.
Pricing
One plan. No traffic limits.
Janus Gate Essential
$19.99/ month
- Up to 5 landing pages
- Live results monitor
- Text and style tests
- Every language, kept apart
- Email when a block has a winner
- Cancel anytime
14 days free on your first test
Questions
Before you start
- Do I need a developer?
- No. Paste our instructions into an AI coding tool, send them to your developer, or add the script by hand with the guide. If you prefer, we can set it up for you.
- Will it slow down my page?
- The script is small and loads once. Only the blocks being tested wait for their version, usually a fraction of a second. If anything goes wrong, your original page shows.
- How much traffic do I need?
- A few hundred visitors per version give a first answer when one version is clearly better. During setup we estimate how long your test will take, based on your traffic.
- What counts as a result?
- You choose: a signup, a purchase, a form sent, a download. Visitors who read and scroll also count a little, so the test learns even before the first sale.
- How is this different from a classic A/B test?
- A classic test splits traffic evenly until the end, so half your visitors keep seeing the weaker version. Janus Gate moves traffic toward the better version while it learns.
- How does the free trial work?
- Your first test is free for 14 days. We ask for a card to start it and charge nothing until day 14. We email you the day before. Cancel before then and you pay nothing.
- Can I cancel?
- Yes, in two clicks from your dashboard. No emails, no calls. Your plan stays active until the end of the month you paid for.
Something else? Ask us or let us set it up for you.
Stop guessing. Let your visitors decide.
Set up for free, then test free for 14 days. Cancel before and you pay nothing.
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