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How we cut CAC by 42% in 90 days
A field-tested playbook from our work with a Series-A SaaS client.
NI
Nishant Singh
May 18, 2026 · 6 min read
The starting point
When the team first came to us, their customer acquisition cost was creeping toward unsustainable territory.
The strategy
We restructured everything from creative cadence to attribution windows.
Three things that moved the needle
- Re-platforming the landing pages onto Next.js with proper Core Web Vitals.
- Building a creative testing engine — 30+ variants per week.
- Switching attribution from last-click to data-driven with GA4 + Triple Whale.
The result
CAC dropped 42% over 90 days, with payback collapsing from 18 months to 11.