Product page conversion rate optimization with A/B testing and analytics

Why Your Product Pages Do Not Convert

By Brennan Lunin, Founder at BL AdWorks

Nobody needs a redesign. A redesign is what gets sold when nobody can find the actual problem.

The product page usually has something specific wrong with it, and after looking at a lot of them, it is usually one of these. I have put them in the order I would work through them, but the honest answer is that the right order depends on which one your page is worst at. Open your page while you read this.

1. The shipping cost is a surprise

Start here, because the data is unusually clear.

Baymard Institute aggregates dozens of checkout studies and puts average cart abandonment around 70%. More usefully, their research consistently finds the leading reason is unexpected extra cost at checkout: shipping, taxes, fees.

Not price. Not indecision. The surprise.

If your shipping cost is only discoverable at checkout, you have moved your worst news to the most expensive possible moment: after the customer has invested effort, chosen a variant, entered an address. They do not feel informed at that point. They feel ambushed, and they leave.

Put it on the product page. Show a real delivery date, not “3-5 business days”. Put the return policy in one line near the button.

You will abandon fewer carts, which is worth considerably more than recovering more of them.

2. The buy box does not work on a phone

Price, variant picker, add-to-cart, shipping cost, review count. On a phone, above the fold, without hunting.

And test it properly: open your store on your own phone, on cellular data, and try to buy something. Not a resized browser window. Not on office wifi.

You will find things. The button below the fold. The size dropdown you cannot tap accurately. The image that will not pinch-zoom. The 4MB hero image that takes six seconds on LTE. Ninety seconds of using your store like a customer will beat an hour of auditing it like an owner.

3. The button moves right as they reach for it

The conversion killer nobody measures: layout shift.

The page loads, they reach for Add to Cart, a late image finishes loading, the button jumps, and they tap a link instead. They do not file a bug report. They leave, and you record it as a bounce.

Reserve the space for images and embeds so nothing moves after paint. This is Cumulative Layout Shift, it is measurable, and it is quietly expensive.

4. Not enough images, and the wrong ones

Two photos asks a lot of the customer’s imagination. The set I want on every product:

  • A clean hero shot
  • A scale shot, so they know how big it actually is
  • A lifestyle shot, in use
  • A detail shot of the material or whatever justifies the price
  • What the package looks like when it arrives

A fifteen-second video of the product turning beats any single one of them, and it is the cheapest thing on this list to produce. You have a phone.

5. The reviews have no photos in them

Text reviews are fine. Reviews with a photo the customer took do something stock photography structurally cannot: they show the product in a real room, in real light, owned by a real person who is not you.

Add a photo upload to the review form. Ask for photos specifically in the post-purchase email. Then put the good ones where people will actually see them, rather than below the fold.

I am not going to quote you a conversion lift for this. I have seen the numbers people cite and I cannot source any of them.

6. The description is a wall

Nobody reads it. Open with one sentence saying what it is and who it is for. Then bullets for what matters. Then a collapsed section for specs, for the small number of people who want dimensions and care instructions.

Write the benefit, not the engineering. “Keeps drinks cold for 24 hours” is the thing being bought. “Double-wall vacuum insulation” is how you do it, which is a different and less important sentence.

7. The trust signals are in the footer

The moment of anxiety happens at the click. That is where the star rating, the review count, the payment icons and the guarantee need to be, within a thumb’s reach of the button.

Trust signals on a separate “why trust us” page are trust signals nobody reads, at the moment nobody needs them.

One rule: if the page says “12 people are viewing this”, that had better be true. Fake urgency is detectable, and it costs you the sale and the trust in one move.

How to know if any of it worked

Change one thing. Wait. Then change the next.

Change all seven on a Tuesday and watch revenue move on Friday, and you have learned nothing about which one did it, so you will not know what to do next time. Watch conversion rate, add-to-cart rate, and revenue per session.

And split by device before you conclude anything. A store at 2.1% blended might be 3.4% on desktop and 1.2% on mobile. If most of your traffic is mobile, that blended number is describing a store that does not exist.

The part most posts about product pages skip

Fixing the product page gets you more first orders. It does nothing about the second one.

Klaviyo’s benchmarks across 183,000+ brands report that flows drive about 41% of email revenue from just 5.3% of sends, with click rates of 5.58% against 1.69% for campaigns. Those flows only exist if you captured the email in the first place.

So if you are paying to acquire a customer, converting them at whatever rate your page manages, and then never emailing them again, the product page was never your most expensive problem.

Fix the page. Then capture the email. Then build the flow that makes the second purchase happen.

Sources: Baymard Institute cart abandonment research. Klaviyo email marketing benchmarks (183,000+ brands).

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