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Do CTA copy A/B tests work on landing pages?

About the same as anywhere else. CTA copy tests win 10% of the time on landing pages, against 12% across all page types. This page neither helps nor hurts the change type.

Layout tests carry a higher published rate on landing pages — 14% on 42 tests tests — though see the note below before reading that as a recommendation.

Small sample. Few of these tests cleared the bar. The 95% interval on that win rate runs 3% to 25%, so read the figure as directional.

The numbers

Won 10% No measurable change 65% Lost 26%
landing pagesall page types
Tests analysed31 tests250+
Beat control10%12%
No measurable difference65%
Lost to control26%
Median lift when it won not reported

Median traffic per variant was 1124 visitors.

What else is worth testing on landing pages

change typewin rate on landing pagestests
Layout 14%42 tests
CTA copy (this page) 10%31 tests
Styling 7%50+
Split URL 6%250+
Headline 3%100+

Only change types with at least 30 tests on landing pages appear here.

What tests on landing pages measured

A win rate only means as much as the thing being counted, so this is what these tests were actually optimising for.

measured outcomeshare of tests
Purchase / order complete42%
Lead / form submission19%
Signup / registration18%
Booking / appointment7%

Outcomes below 5% of the set are not listed, so these do not sum to 100. How the outcome was measured moves the win rate a lot — see the methodology.

Why this table is not a ranking

These rates are not like-for-like. How often a test wins depends partly on what it chose to measure: a goal that records a soft signal — a click, a scroll — clears the bar more often than one that records a purchase. Across this data, tests measured against a proxy goal win 13%, against 9% for tests measured against a business outcome.

Categories differ a lot in that mix — proxy goals account for anywhere from 2% to 41% of a category's tests.

Hold the metric fixed and the spread narrows sharply. Comparing only tests measured against a business outcome, the gap between the highest and lowest category falls from 9 points to 6 — at which point the intervals overlap and the categories are not statistically distinguishable.

So read the table as a description of what happened, not as a ranking of what works. If you want the comparison to mean something, compare categories that were measured the same way. The methodology page has the full breakdown.

What counts as a CTA copy test

The button's words change. Size, colour and position stay as they were. Change the colour too and you have two variables.

Control and variant wireframe for a CTA copy A/B test
Control on the left, variant on the right. For how this differs from adjacent categories, see the CTA copy benchmark.

CTA copy tests that won on landing pages

  • The top-right nav button changed from a purchase prompt to a generic action prompt.

    E-commerce+64.4%

  • The generic cursor-icon call to action was replaced with a labeled button that used a free-challenge prompt and an arrow icon, and a gradient background was added.

    Education+5.4%

CTA copy tests that did not

  • The button text changed from a request-for-information phrase to a more direct information-request call to action.

    EducationNo significant difference

  • The form placeholder changed from a standard address prompt to a more conversational one, and the CTA button changed from a direct label to a question-style qualification prompt.

    Finance & InsuranceNo significant difference

  • The top navigation button changed from an application prompt to a getting-started prompt.

    MarketplaceNo significant difference

These are individual tests, not rules. Each ran on one site, with one audience, against one page we are not showing you. They are picked to be illustrative rather than sampled at random, and a change that won here can lose on your page for reasons none of this captures. Read them as prompts for what to test, not as findings to copy.

Who ran these tests

This is every Mida account that ran a readable test — in-house marketers, founders, product teams, and agencies working on client sites. Nothing here is filtered by who ran the experiment or how experienced they are.

Low win rates are normal in experimentation, including at the top end. Microsoft's experimentation team, reporting on its own platform, found that only about one third of ideas improve the metric they were designed to improve — and that roughly another third actively hurt it. That is a dedicated experimentation organisation with research, prioritisation and review behind every test.

A mixed population like this one runs below that. The gap is roughly what disciplined practice buys you: ideas grounded in research rather than opinion, one variable at a time, and tests built so the result can actually be read.

A win is a variant that beat its control on that test's primary goal with a statistically significant result. Tests that never got enough traffic to say anything either way are excluded. The methodology has the full detail, including what these numbers cannot tell you.