Landing Page Optimisation

You already paid
for the traffic.

Doubling landing page conversion halves your cost per lead without touching a bid or a ranking. It is almost always the cheapest lever available, and it is almost always the last one anyone pulls.

2x
Conversion halves CPL
0
Extra media spend
2017
Operating since
CHEAPEST LEVERConversion
Message match
Mobile speed
Form design
Tested, not guessed
01
Why pages underconvert

The traffic is fine. The page is asking too much, too early

Most underperforming landing pages fail for the same handful of reasons: the page does not say what the ad said, the form asks for more than the offer is worth, it is slow on the phone where most of the traffic is, and nothing on it makes an unfamiliar company look safe to contact. None of those are fixed by buying more traffic.

No message match

The ad promised something specific and the page shows a generic homepage. The visitor cannot tell they are in the right place and leaves.

Forms that ask too much

Eleven fields for a first enquiry. Every additional field costs completions, and most of them are never used by anyone.

Slow on mobile

Field performance rather than a lab score. Most paid traffic is mobile and a page that takes seconds to become usable loses the visit before it is read.

No reason to trust

No reviews, no real photography, no address, no named people. For an unfamiliar company that absence is enough to stop an enquiry.

Mobile
Most paid traffic
Field
Data, not lab
0
Extra media spend
2017
Operating since
02
How we do it

Fix the obvious, then test the rest.

A meaningful share of the gain comes from things that do not need testing at all — matching the page to the ad, cutting the form to what you actually use, making it fast on a phone, and putting genuine proof where the decision happens.

Then structured testing on what remains, with enough traffic to reach a real result rather than calling a winner after two days on a difference that is noise.

  • Message match — the page reflects the ad or query that brought them, so there is no gap between what was promised and what appears.
  • Form reduction — every field justified against whether anyone uses it. Progressive capture for the rest, asked once there is a relationship.
  • Mobile performance — measured on field data at the 75th percentile, because that is what visitors experience and what Google uses.
  • Proof where the decision happens — reviews, real photography, credentials and named people placed next to the call to action rather than buried on an about page.
  • Structured testing — one meaningful change at a time, run to significance, with results documented so nothing gets retested a year later.
Typical approach
How we work
Buy more traffic
Convert the traffic you have
Ads point at the homepage
Page matches the ad
Long forms, everything required
Only fields you actually use
Lighthouse score
Field data at the 75th percentile
Test button colours
Test offer, message and structure
Winner called in two days
Run to significance

The arithmetic that makes this the first thing to fix: going from 2% to 4% conversion halves your cost per lead across every channel at once, permanently, with no increase in media spend. Buying the same result through traffic means doubling the budget.

03
The method

How pages get rebuilt

Six steps. The first three usually deliver most of the improvement.

01

Behaviour analysis

Where people stop — scroll depth, field-level drop-off, rage clicks and session recordings on the pages that matter commercially.

02

Message match audit

Every ad and query mapped against the page it lands on, to find the gaps between what was promised and what appears.

03

Performance fixes

Core Web Vitals on field data, with the specific elements causing failures identified rather than a general speed pass.

04

Form rebuild

Fields cut to what is genuinely used, validation made forgiving, and the submission path tested on real devices.

05

Trust placement

Genuine proof positioned next to the action rather than on a separate page nobody visits.

06

Testing programme

Structured tests on offer, headline and structure, run to significance and documented so learning accumulates.

04
What is changing

Four things that changed conversion work

Measurement got harder and mobile got more decisive.

01

INP replaced FID

Interaction to Next Paint measures every interaction rather than the first. Pages that felt fine on the old metric frequently fail this one, and it correlates with abandonment.

02

Consent modes cut observable data

Fewer sessions are measurable, so tests need longer to reach significance and small differences are harder to trust than they used to be.

03

Mobile share kept rising

In most paid campaigns the majority of traffic is mobile, which makes desktop-first design decisions actively expensive.

04

Trust signals matter more

With more AI-generated sites competing, visible evidence of a real business — named people, genuine photography, verifiable reviews — does more work than it used to.

05
How we are different

We fix before we test

Testing a broken form is a slow way to discover it was broken.

Obvious problems first

Message match, form length and mobile speed usually deliver more than any test, and they need no traffic volume to justify.

Tests run to significance

We will not call a winner on two days of data. Most reported conversion wins in this industry are noise read as signal.

Field data, not lab scores

We optimise what visitors actually experience at the 75th percentile, which is also what Google measures.

Every form field justified

If nobody uses the answer, the field goes. This alone frequently produces the single largest gain on a page.

Real proof only

Genuine reviews and real photography. Invented testimonials are easy to spot and cost more trust than they buy.

Measured on cost per lead

Conversion rate is the mechanism; the cost per qualified lead across every channel is the outcome we report.

06
The Honest Comparison

Why Businesses Choose SDM for SEO

Same budget, very different outcomes. Point by point, here’s how a specialist partner compares to a typical agency or going it alone.

What actually matters With SDM Typical Agency In-House / DIY
Senior specialist on your accountAlwaysOften a juniorStretched thin
Custom strategy built for your goalsTailoredTemplatedGuesswork
Deep audit before any work beginsSurface-levelSkipped
White-hat, penalty-safe methodsGuaranteedVariesHigh risk
Plain-English reporting tied to revenueMonthlyJargon PDFsNone
Direct access to your specialistAccount-manager relayN/A
Message match audited per campaignRarelyNo
Form fields justified individuallyLeft as builtNo
Field performance data usedLab scoreGuesswork
Tests run to significanceCalled earlyn/a
Reported as cost per leadConversion % onlyUnclear
Ongoing competitor gap analysisOne-offManual
Conversion-focused, not just trafficTraffic-firstUnclear
Premium tools included (Ahrefs, SEMrush)SometimesCostly extra
No long lock-in contractsFlexible6–12 mo lock-inN/A
Established agency, operating since 2017VariesLearning curve
Fast onboarding & early quick wins~2 weeksSlowTrial & error
Human, SEO-led content (no AI spam)Outsourced / AI spamTime-heavy
Focus on compounding, long-term ROICore promiseShort-term winsSlow & ad-hoc
Recovery from Google penaltiesSometimesVery hard

20 reasons growing brands make the switch. See the difference for yourself →

07
What we measure

Conversion rate is the mechanism. Cost per lead is the point.

A conversion gain that does not lower acquisition cost has usually just moved traffic around.

Conversion rate by page

Per landing page and per source, because an average across a site hides the pages actually costing money.

Cost per qualified lead

The outcome metric. Conversion improvements should show here across every channel at once.

Form completion rate

Field-level drop-off, which shows exactly where people abandon rather than that they did.

Core Web Vitals by template

Field data at the 75th percentile, split by template rather than averaged into meaninglessness.

Test velocity and win rate

How many tests run and how many produced a real result. Both matter; neither alone is meaningful.

Conversion report
Sample page — where visitors drop
LIVE
Landed
base
Scrolled to form
61%
Started form
34%
Completed
19%
Qualified
12%
→ The started-to-completed gap is where forms lose people
08
Working together

Four stages, gains inside the first month

Unusually for this work, the early wins do not need a testing programme.

01

Find the leak

Behaviour analysis, field-level drop-off and message match audit across the pages that carry commercial traffic.

→ Where it is being lost
02

Fix the obvious

Message match, form length, mobile performance and trust placement — no testing required.

→ First gains, quickly
03

Test the rest

Structured tests on offer, headline and structure, run to significance rather than called early.

→ Compounding improvement
04

Report on cost

Cost per qualified lead across channels, because that is what a conversion gain is worth.

→ Cheaper acquisition
09
Targets

The targets we set on a conversion programme

Targets we plan against for clients with existing paid or organic traffic to improve.

<2.5s
Mobile LCP
Field data target
−54%
Cost per enquiry
vs paid-only channels
0
Extra media spend
Gains from conversion
2017
Operating since
Zero penalties

These are planning targets rather than a record of past client averages; we agree a realistic range against your own baseline before an engagement starts. Conversion gains depend heavily on the starting point — a page already well built has far less headroom than one that has never been examined, and we will tell you which you have during the audit.

10
Scenarios

Three conversion problems we see repeatedly

Composites drawn from situations we encounter repeatedly — they illustrate method, not the account of any single named client. The scenarios below are composites drawn from situations we encounter repeatedly — they illustrate method, not the account of any single named client.

B2B services

Eleven fields on a first enquiry

Challenge

The enquiry form asked for company size, budget, timeline and job title before anyone had spoken to the business.

What we did

Cut to four fields, moved the rest into the follow-up conversation, and added field-level drop-off tracking.

4
Fields, from 11
+126%
Completions
E-commerce

Every ad pointed at the homepage

Challenge

Campaigns for specific product categories were all landing on the homepage, so visitors had to find what the ad had promised.

What we did

Built matched landing pages per campaign with the ad’s offer visible without scrolling.

+83%
Conversion rate
−45%
Cost per sale
Local services

Fine on desktop, failing on phones

Challenge

Lab scores looked strong while the majority of paid traffic, on mobile, was bouncing before the page became usable.

What we did

Field data identified a third-party script blocking interaction. Deferring it fixed INP without a redesign.

1.9s
Mobile LCP
+58%
Mobile enquiries
11
Questions

Questions about landing page optimisation

On forms, testing, mobile and what actually moves conversion.

What is landing page optimisation?+

Improving the share of visitors to a page who take the action it exists for. In practice that means matching the page to what brought the visitor, reducing what the form asks, making it fast on mobile, and placing genuine proof where the decision is made — then testing what remains.

Why optimise pages instead of buying more traffic?+

Because it is usually cheaper and the gain applies everywhere at once. Going from 2% to 4% conversion halves your cost per lead across every channel permanently, with no increase in media spend. Buying the same outcome through traffic means doubling the budget indefinitely.

How many form fields should we have?+

As few as you genuinely use. Every additional field costs completions, and most forms ask for information nobody ever acts on. Ask for what you need to have a first conversation and collect the rest once there is a relationship. Cutting fields is frequently the single largest gain available on a page.

How long does A/B testing take?+

Longer than most people allow. You need enough conversions to reach significance, which on lower-traffic pages can mean weeks per test. Calling a winner after two days on a small difference is reading noise as signal, and it is why so many reported conversion wins do not survive contact with reality.

What if we do not have enough traffic to test?+

Then testing is the wrong tool and we will say so. On low-traffic pages the gains come from fixing the known problems — message match, form length, mobile speed, trust signals — none of which require statistical validation because they are not close calls.

Should landing pages be separate from the main site?+

For paid campaigns, usually yes, so the page matches the ad exactly and carries no competing navigation. For organic, the page needs to serve a broader intent and sit properly within the site. The two jobs are different and a single page rarely does both well.

Do you rebuild pages or just advise?+

Either. We can hand your developer a specification detailed enough to implement without a follow-up call, or build and test the pages ourselves. Most clients start with the specification and move to us building once the value is proven.

How quickly will we see improvement?+

Faster than most marketing work. Message match and form fixes can show within days of shipping because they need no algorithmic response — just a better page. Structured testing then compounds over the following months.

Next step

What is your landing page conversion rate?

If you do not know it per page and per source, the cheapest improvement available to you is invisible. The free audit shows where visitors drop, which forms lose them, and what the pages cost you.

Field-level drop-off analysed
Message match audited
Mobile field data, not lab scores
Reported as cost per lead
CHEAPEST LEVERConversion
Chat With Us
🚀 Book Free Audit & consultation!
45 min · Free audit + strategy + consultation · No obligation