Founded in 1937 family-owned Southern California boutique, Windsor Fashions has grown into a national style authority — nearly 350 stores, more than 4,100 employees, and loyal customers that come to Windsor to find standout looks for whatever moment is next.
Windsor’s shoppers typically have high intent when they visit the online store, but need help finding the right outfit, fast. The challenge for Windsor’s digital team was turning high purchase intent into transactions by improving the discovery process.
The team put social proof to the test. Across December 2025 and January 2026, it ran a two-week, 50/50 A/B proof of concept across the full funnel (PLP, PDP and cart). Taggstar’s social proof messaging surfaced what was selling and what was trending, with messages like ‘Hot Pick! Sold X times since your last visit’ and ‘Viral Fave! Sold X times in X hrs’ guiding shoppers toward the products others were already choosing.
In just fourteen days, social proof messaging passed the test:
- 4.19% conversion rate uplift
- $37,716 in incremental revenue (395 additional orders)
- 14% increase in average order value
- 5.7X return on investment
Extrapolated over a full year, those results add up to close to $2 million in additional sales.
Social proof proved to be an effective solution to turn intent into purchase. When shoppers already want to buy, social proof closes the distance between intent and decision. It surfaces the bestsellers, the trending pieces and the items moving fast, so the right product rises to the top before hesitation sets in.
Social proof messaging was also fast and easy to implement.
“The implementation process was smooth and straightforward. The Taggstar team was organised, responsive and proactive throughout onboarding and testing. Integration was relatively lightweight, and communication between teams made it easy to move quickly.”
— Freya Seeger, Sr. Director of Ecommerce, Windsor
The results were so convincing that Windsor is now planning an aggressive rollout of social proof across the business including review messaging, attribute messaging and dynamic badging.
The takeaway for eCommerce teams: a focused proof of concept can settle the business case faster than you’d expect. When the numbers land, the question stops being whether social proof works and becomes how fast you can scale it.
