Source: https://oguzerol.com/en/landing-page-a-b-testing/

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# Landing Page A/B Testing | Improve by Measuring

[Oğuz Erol](https://oguzerol.com/en/about-me/)  |  3 min read

Landing page A/B testing splits the same traffic between two page versions and measures which converts better. Built correctly it ends the guesswork argument; built incorrectly it lends legitimacy to a wrong decision.

## Fix first, then test

Before testing, obvious problems on the page have to be fixed. Running a test on a page that loads slowly, breaks on mobile or fails to deliver the ad’s promise means choosing between two bad options.

Once the basic fixes from [landing page optimisation](https://oguzerol.com/en/landing-page-optimization/) are done, testing becomes meaningful. At that point “which is better” is a real question.

## What is worth testing

Small changes do not produce measurable differences. Changing a button colour and hunting for an effect wastes time on most sites.

The tests that matter are structural: a different main headline and promise, form length and position, whether price is shown, the type and placement of social proof, page length. These genuinely affect the decision.

## When traffic is not enough

A/B testing needs enough data to say the result was not chance. On low-traffic sites that takes weeks or months, and market conditions change in the meantime.

In that case sequential comparison is more practical: make the change and compare against the previous period. It is less certain but the only workable route at low traffic. Alternatively, run the test on your single highest-traffic page and apply what you learn to the others.

## What breaks a test

The most common mistake is ending it early. The version ahead in the first days can fall behind as data accumulates.

Second, making other changes during the test: raising budget, launching new campaigns, changing the bidding strategy. These alter the traffic mix and invalidate the test. Third, showing the two versions in different periods — seasonality distorts the result.

## What the measure should be

The measure should be conversion rate, not time on page or bounce rate. Those intermediate metrics are hard to interpret: a long visit can mean interest or confusion.

In e-commerce the measure should be conversion rate together with basket value; a change that raises conversion rate while lowering average order value does not produce profit.

**How do we start?** First I identify structural alternatives worth testing on your page and calculate whether your traffic supports a test. If it does not, I propose the alternative method. You can reach me from the [contact page](https://oguzerol.com/en/contact/).

## Frequently Asked Questions

### Do I need a testing tool?

You need something to split traffic in a controlled way. A simple comparison can also be built inside Google Ads by pointing different ads at different pages.

### Do two similar pages cause SEO problems?

Test pages should not be left open to search engines; that is managed with canonical tags and indexing settings. For short tests this rarely causes issues.

### When should I make the winner permanent?

Once the result reaches sufficient data and the difference is measurable. After that, starting a new test is how you keep improving the same page.

[Back to top ↑](https://oguzerol.com/en/landing-page-a-b-testing/#icerik)

## You may also find these useful

[Landing Page Optimisation | Do Not Waste the ClickAd budget pays off on the landing page. Message match, speed, forms, trust and mobile experience — the fixes that move conversion rate the most.](https://oguzerol.com/en/landing-page-optimization/)[A/B Ad Copy Testing | Which Message Actually WorksChoose Google Ads copy by measuring, not guessing. Test design, the single-variable rule, how long to wait and what testing means in the RSA era.](https://oguzerol.com/en/a-b-ad-copy-testing/)[Conversion Rate Optimization | Same Traffic, More SalesIf visitors to your site leave without buying, the problem isn't traffic — it's the page. Data-driven diagnosis, improvements proven through A/B testing.](https://oguzerol.com/en/conversion-rate-optimization/)

[Browse all articles →](https://oguzerol.com/en/articles/)

WHAT YOU CAN ASK FOR

## How do I work?
Work-hour packages

Tell me about your business and what you need on WhatsApp or by phone; we agree on **a work block of somewhere between 5 and 40 hours** and I start doing what is needed. What you get is not a calendar window — it is net working hours spent directly on your business. I can use 40 hours working three days straight, or deliberately spread it out and finish it over a year — whatever the work calls for. I do not spend my time estimating how long something will take, I spend it doing the work; every hour I spend leaves a lasting result in your business. We keep going for as long as you find it useful.

WORK BLOCKS

## Why not monthly?
Is 40 hours a week?

On a fixed monthly fee both sides are watching the wrong thing: you watch a fixed cost, the other side watches how many more contracts like this they can line up. Working by the hour puts us both in front of the same thing — the real value of the work that got done. I know not having an upfront answer to "how much will this cost in total?" is the natural cost of this model. But instead of paying a fixed fee for months to a setup that is not producing results, you only pay for the qualified time spent on your work — and you see exactly where that time went, start to finish. That is why my clients keep coming back.

5hours300€ + VAT60€ per hour[Choose this block](https://wa.me/905496546489?text=Hi%2C%20I%27d%20like%20info%20about%20the%205-hour%20work%20block.)

10hours500€ + VAT50€ per hour[Choose this block](https://wa.me/905496546489?text=Hi%2C%20I%27d%20like%20info%20about%20the%2010-hour%20work%20block.)

20hours800€ + VAT40€ per hour[Choose this block](https://wa.me/905496546489?text=Hi%2C%20I%27d%20like%20info%20about%20the%2020-hour%20work%20block.)

40hours1,400€ + VAT35€ per hour[Choose this block](https://wa.me/905496546489?text=Hi%2C%20I%27d%20like%20info%20about%20the%2040-hour%20work%20block.)