Case Study: Bigstock achieves an 81% reduction in CPA while scaling spend with Rockerbox

Bigstock Acquisition Campaign Exceeds Cpa Goals By 81%

Bigstock, a division of Shutterstock, partnered with Rockerbox to run its first recency-based display acquisition campaign. Bigstock’s challenge was to scale acquisition spend while continuing to reduce cost-per-acquisition (CPA); Rockerbox applied its Real Time User Intent technology to find browsing patterns most correlated with subscribers.

Rockerbox implemented a recency-focused, real-time targeting strategy that ramped spend over five months while driving CPAs down (reported improvements up to 81% overall and 58% during the five‑month ramp). The campaign also produced 50% of conversions within one hour of the initial impression and a 300% increase in post-click conversions—results Bigstock attributed to Rockerbox’s technology and team.

Bigstock

Boris Masis

Product Manager, Bigstock