CASE STUDY
Cutting Cost Per Conversion by 39% for a Beauty Care Clinic
Client: A European beauty care clinic (name withheld for confidentiality) — salon and skin treatment bookings driven entirely through Google Search Ads.
Cost per conversion, down from €11.10 (↓39%)
Average CPC, down from €0.62 (↓34%)
Conversion rate, up from 5.57% (↑9%)
Search impression share — the real growth ceiling
The Challenge
The account was booking beauty and salon appointments at €11.10 per conversion with a healthy 5.57% conversion rate — the ads clearly worked. The problem was reach: search impression share sat at just 18.89%, and absolute top-of-page share stayed under 10%, meaning the campaign was eligible to show for far more searches than it actually won. That combination — strong conversion rate, weak reach — is the classic signature of a daily budget cap or a Quality Score issue capping ad rank, not a targeting or ad-copy problem.
What We Found
We compared two reporting windows — a full calendar month in June, and the following two months at the ad-group level — normalised to daily averages so the comparison stayed fair across the scope change. Splitting efficiency metrics from volume metrics is what revealed the real story: cost per conversion, CPC, and conversion rate all improved together, even as raw daily volume looked lower on paper.
June (before, lighter bar) vs. Jul–Aug (after, violet bar) — normalised per day
The Roadmap: Turning Efficiency Into Volume
Confirm the Constraint, Then Raise Budget in Stages
Check the account’s own “Limited by budget” flag directly, then lift daily budget in controlled steps — watching whether impression share climbs without cost per conversion rising.
Move to Target Impression Share Bidding
Set a realistic 30–40% top-of-page target for the strongest ad group, rather than chasing absolute top position from under 10%.
Concentrate Spend on Proven Keywords
Shift budget toward phrase and exact match on the top 3–5 converting search terms, and clear out low-value queries from the Search Terms report first.
Clean Up Measurement
Segment location-extension clicks (driving directions, “get location details”) from standard search clicks, and pull Quality Score directly for clean CPC and rank decisions.
The Result
Across the two reporting windows, the account’s unit economics moved in the right direction on every efficiency metric: cost per conversion down 39%, average CPC down 34%, and conversion rate up 9% — while search impression share stayed under 20%. In plain terms: the ads that ran, ran efficiently, but they were only entering roughly 1 in 5 eligible auctions. That gap is the growth opportunity the roadmap above is built to close.
Note: the "before" period reflects a full calendar month at the campaign level; the "after" period reflects roughly two months at the ad-group level. Figures are directionally reliable and normalised per day where compared, but treated as indicative rather than a strict like-for-like.
Frequently Asked Questions
What causes low impression share in a Google Ads account that's converting well?
Usually a daily budget cap or a bid-rank/Quality Score ceiling — the ads that do run convert fine, but the account is switched off or outranked before demand runs out. Checking the campaign’s "Limited by budget" status is the fastest way to tell which one it is.
How do you separate genuine efficiency gains from a change in reporting scope?
By normalising every metric to a daily average and comparing efficiency metrics — CPC, conversion rate, cost per conversion — separately from volume metrics, which are far more sensitive to period length and campaign scope.
Why exclude clicks like "get directions" from CPC and CTR analysis?
Map-interaction clicks are counted very differently from standard search clicks and can show CTRs well over 100%. Mixing them into standard ad-copy metrics distorts the read on how the actual search ads are performing.
How long does a Google Ads audit like this typically take?
A focused efficiency-and-reach audit like this one usually takes one to two weeks, including pulling Search Terms and Quality Score data.
Do you manage Google Ads for beauty salons, spas and clinics?
Yes — local beauty and wellness businesses are one of our core verticals for Google Ads and AI SEO management, where reach, appointment volume, and cost per booking all need to move together.
Running Google Ads for a Clinic, Salon or Local Service Business?
We’ll pull your account, separate genuine efficiency from reporting noise, and tell you plainly whether budget, bidding, or ad quality is holding you back.