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Skincare brand cuts Google Ads CPA by 39% and boosts Meta Match Quality to 9+ with server-side tracking

Maryna Semidubarska

Maryna Semidubarska

Author
Published
Dec 16, 2025
i

Key takeaways:

  • Transparent Digital Services used Stape to fix tracking gaps for a fast-growing skincare brand.
  • The brand moved from client-side tracking to server-side due to missing events, low match quality, and unreliable reporting.
  • The setup used a server Google Tag Manager container, Meta Conversions API and Google Ads API.
  • GA4 recorded 1,724 purchases before deployment and 4,512 after deployment.
  • Meta event match quality rose from 0-5 to above 9.
  • The Google Ads cost per purchase dropped by 39.39% in April after the rollout.

A fast-growing skincare eCommerce brand worked with our partner Transparent Digital Services to fix tracking gaps that were blocking clear reporting across Meta, Google Ads, and GA4. Client-side tracking gave inconsistent numbers, low event match quality, and missed conversions. Server-side tracking on Stape helped solve this.

Challenge: fix broken tracking and reporting across channels

Before server-side, the brand had:

  • Incomplete and inconsistent data from client-side setups only.
  • Lost visibility on key events like purchases, add to cart, and product views.
  • Inaccurate session tracking and double-counting from Google and Meta pixels added through Shopify apps, as both apps sent the same event twice.
  • Poor match quality, with almost no match data in ad platforms.
  • Problems tracking UTM parameters and real campaign impact.
  • Extra issues from privacy and consent changes.

These gaps made it hard to scale paid campaigns and trust platform numbers.

Solution: switching to server-side tracking

The brand needed one framework where all events were processed clearly and sent to platforms without browser loss.

Server-side tracking through Stape gave:

  • Higher control over what data is sent.
  • One clean source of truth.
  • Better match between site activity and ad platforms.
  • No event duplication.
  • More stable consent handling.

The team chose Stape for the easy integration with Shopify and Google Tag Manager, fast setup, and stable long-term maintenance.

The setup used a server Google Tag Manager container hosted on Stape. All browser events were sent to a cloud server, processed there, and then forwarded to platforms.

The integration included:

Early in the rollout, small differences between Google and Meta were fixed by adjusting GTM settings. After that, the setup ran smoothly and delivered stable, accurate reporting.

Results: recovered conversions, increased Meta Ads performance, and more

Only a few days after launch, the brand saw clear improvements:

  • Higher data accuracy.
  • A spike in paid-search sessions linked to cleaner event capture.
  • Meta event match quality rose from 0–5 to consistently above 9.

This showed a much stronger link between on-site actions and platform identifiers.

Impact on Google Analytics

GA4 recorded a strong uplift in purchases after moving to server-side:

  • 1,724 purchases before deployment
  • 4,512 purchases after deployment

This confirmed that browser tracking was under-reporting real conversions and losing events due to consent and browser limits.

Data from server-side tracking was higher and more stable, giving the brand better reporting for analysis and budget planning.

Better conversion efficiency

Google Ads data showed a lower cost per purchase after the rollout:

  • £18.15 in January
  • £19.42 in February
  • £11.97 in April

The drop showed that better tracking sent stronger signals into Google's systems and cut cost per purchase by 39.39%.

Conversion rate gains

With stable tracking, the brand's conversion rate increased by 10%. This came from better attribution, higher match quality, and more accurate retargeting.

Stronger Meta Ads performance

Before server-side (1 Dec – 11 Mar):

  • 1724 purchases
  • £27,721 total spend
  • £41.44 cost per purchase
  • CTR 0.94%

After server-side (12 Mar – 1 Jun):

  • 3,807 purchases
  • About £14 cost per purchase (about 40% lower)
  • + 3.01 ROAS
  • + 1.47% CTR

Cleaner events helped Meta match more users, target better, and learn faster.

Why choose Stape

  • Server-side tracking on Stape recovers lost events and sends more complete data to Meta, Google Ads, and GA4.
  • Custom Loader and Cookie Keeper help tags keep working across browsers and privacy rules.
  • Built-in Analytics lets specialists see how better tracking can affect purchases, cost per purchase, and ROAS.
  • Quick and easy setup. 

Want to start on the server side?Register now!

author

Maryna Semidubarska

Author

Maryna is a Content Manager with expertise in GTM and GA4. She creates clear, engaging content that helps businesses optimize tracking and improve analytics for better marketing results.

Comments

Try Stape for all things server-side