A/B testing

Stop guessing
which version works.

Test thumbnails, whole videos or a call to action against each other on your real traffic. Pellio splits viewers evenly, shows which is winning and, when it’s clear, puts the winner live.

On the Advanced plan.

What you can test

Three kinds of test, one embed code.

Thumbnails

Upload up to three alternatives to the current thumbnail and see which gets more people to press play.

Whole videos

A shorter cut, a new intro, a different presenter: judged by how many watch at least half.

Calls to action

Different wording, button or link on a form, call to action, card or end screen: judged by clicks and sign-ups.

How it decides

A winner when the numbers say so, not before.

Leave “Pick the winner automatically” on and Pellio checks every hour. Once each version has at least 100 loads and one has a 95% chance of being the best, the test ends and the winner goes live.

  • Each viewer keeps seeing the same version
  • Results per version: loads, play rate, watched half, conversions and the change against the original
  • “Chance to be best” tells you how sure the result is, so a lucky morning doesn’t pick the winner
  • Previews in Pellio never count

Put it live

The winner replaces the original, everywhere.

No new embed codes, no page edits. The tested video keeps its link, its analytics and its place on every site.

  • A winning thumbnail becomes the video’s thumbnail
  • A winning call to action’s wording replaces the original
  • A winning video plays wherever the original is embedded
  • Or end any test yourself and keep the original

Winners in your report

Tests that ended with a winner appear in your weekly or monthly report email.

Keep testing

Run the next test as soon as one ends, and keep the history of past results.

Results anywhere

Read results over the API, or ask an AI assistant connected to Pellio.

Questions, answered

How many versions can I test?+
The original and up to three variants in one test, and one test at a time per video.
Does a viewer see different versions on each visit?+
No. Each browser keeps the same version for 30 days where it lets the player remember it.
Does it work with WordPress embeds?+
Yes. While a thumbnail test runs, the Pellio plugin loads the player straight away so each viewer sees their version’s thumbnail.
Which plan is it on?+
Advanced. See pricing for everything each plan includes.

Find out what works, then use it.

Start your first test in a couple of minutes.