Landing Page Optimization: What to Test Before Increasing Your Media Budget
Increasing media budget is the most expensive way to grow. Improving the page people land on is usually the cheapest, because every gain applies to every channel at once. Before asking for more budget, it is worth making sure the page deserves it.
The arithmetic of conversion rate
Suppose a campaign spends £20,000 a month at a £2 CPC, sending 10,000 visitors to a page that converts at 2%. That is 200 conversions at £100 each.
| Scenario | Monthly spend | Conversion rate | Conversions | CPA |
|---|---|---|---|---|
| Current | £20,000 | 2.0% | 200 | £100 |
| Double budget, same page | £40,000 | 1.8%* | 360 | £111 |
| Same budget, better page | £20,000 | 2.6% | 260 | £77 |
*Conversion rate usually falls as budget scales, because additional traffic tends to be less qualified.
Improving the page by 30% produces more efficient growth than doubling spend. It also makes any later increase in budget more profitable.
Before testing: find out where people leave
Testing ideas at random wastes traffic. Start with research:
- Funnel analytics. Where do visitors drop out between landing and conversion? Compare devices, traffic sources and new versus returning visitors.
- Session recordings and heatmaps. Where do people hesitate, rage-click or scroll past important content?
- On-page surveys. Ask visitors who are about to leave what stopped them.
- Customer conversations. Ask recent customers what nearly stopped them from buying.
- Form analytics. Which fields cause people to abandon?
The aim is a list of specific problems, each supported by evidence. Good hypotheses come from those problems.
What to test first
These areas tend to produce the largest effects, roughly in order.
1. Message match
Does the page continue the conversation the ad started? If an ad promises “same-day installation” and the page opens with a generic brand statement, many visitors will leave before finding the promise. The headline and first screen should confirm, immediately, that the visitor is in the right place.
This is often the single largest opportunity on paid landing pages, and it is particularly important for native campaigns, as we describe in our native advertising guide.
2. The offer itself
Price, trial length, guarantee, bundle and payment terms usually affect conversion more than any design change. Offer tests need business approval, but they belong at the top of the list.
3. Clarity of the value proposition
Can a first-time visitor explain what you sell, who it is for and why it is better, within a few seconds? Test specific benefits against general claims, and concrete outcomes against features.
4. Evidence and trust
Reviews, ratings, case examples, recognisable certifications that you genuinely hold, clear returns policies and real contact details. The right evidence depends on what visitors doubt. Research tells you which doubts matter.
5. Friction in forms and checkout
Every field, step and surprise cost reduces completion. Test removing optional fields, showing total costs earlier, offering guest checkout and making error messages clearer.
6. Page speed and mobile experience
Slow pages lose visitors before they see anything. Paid traffic, which skews toward mobile on most platforms, is especially sensitive. Fix obvious performance problems before running design tests; they distort results.
How to prioritise
Score each hypothesis on three questions:
| Question | Scale |
|---|---|
| How strong is the evidence that this is a real problem? | 1 to 5 |
| How large could the effect be if we are right? | 1 to 5 |
| How easy is it to build and test? | 1 to 5 |
Start with ideas that score well on evidence and impact. Easy tests with weak evidence feel productive but rarely change much.
Running tests properly
- Decide the primary metric in advance. Usually conversion rate or revenue per visitor, not clicks on a button.
- Estimate the sample size needed to detect a realistic improvement. Low-traffic pages may only support bold changes.
- Run tests for full weekly cycles to avoid day-of-week effects.
- Avoid stopping a test the moment it looks good. Early results are volatile.
- Segment carefully. A change might help mobile users and hurt desktop users.
- Check downstream quality. A change that increases leads but reduces lead quality is not a win.
When traffic is too low for A/B tests
Many landing pages do not receive enough conversions for statistically reliable testing. In that case:
- Make larger changes, where the expected effect is big enough to see
- Use qualitative research and usability tests to catch obvious problems
- Compare performance over longer periods, accounting for seasonality
- Apply learnings from higher-traffic pages and similar businesses
The handover to media buying
Once a page is performing well, tell your media buyers what changed. Better conversion rates allow higher bids for the same CPA, which opens access to more inventory. The page and the media plan are one system, which is why our conversion optimization and performance marketing teams work from the same data.
For the metrics that should guide those decisions, see why CTR can be a dangerous metric.
