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Key KPIs delivered by Taggstar

  • 4.19%

    conversion rate uplift

  • $37,716

    in additional sales

  • 14%

    increase in AOV

  • 5.7X

    return on investment

The Challenge

The Windsor customer is a targeted and driven fashion-conscious shopper, often seeking inspiration for stunning outfits that impress at all of life’s occasions. 

Product discovery is vital for such customers, but being on-trend is also important to them. Windsor wanted to better harness their customers’ high purchase intent by helping them discover products they love more easily. 

Taggstar’s conversion messaging offer uses the incredible power of social proof to highlight what others are buying, what’s trending and bestsellers, improving confidence in purchase decisions.

The Solution

Windsor ran a 2-week, 50/50 AB proof-of-concept test from Taggstar on its website from December 2025 to January 2025. The full-funnel test ran across PLP, PDP and cart and included conversion messages such as ‘Hot Pick! Sold X times since your last visit’ and ‘Viral Fave! Sold X times in X hrs’.

“The implementation process was smooth and straightforward. The Taggstar team was organised, responsive, and proactive throughout the onboarding and testing phases. Integration was relatively lightweight, and communication between teams made it easy to move quickly and troubleshoot any questions along the way.”

Freya Seeger, Sr. Director of Ecommerce

The Results

The initial test generated a conversion rate uplift of 4.19%, with 395 additional orders totalling $37,716 in incremental revenue and a gross profit uplift of $15,086 over the proof-of-concept period. Average order value also grew 14%.

Extrapolated over a year, the results amount to nearly $2 million in additional sales ($1.966m). Return on investment was 5.7X.

The Future

Following these strong proof-of-concept results, Windsor has already agreed a detailed roadmap with Taggstar, which will see it introduce a range of more sophisticated social proof messaging features within Taggstar’s conversion rate optimisation platform by the end of the year. 

New capabilities, such as review messaging, will be introduced next. Review messaging combines the power of social proof with traditional customer reviews to deliver even more compelling reasons to buy – by linking what customers have purchased with what they think about those products. 

Windsor will also roll out attribute and dynamic badging in the second half of 2026. Attribute messaging helps highlight specific features of Windsor products, such as fabric, construction or exclusivity, which will resonate with its fashion-conscious customers and help its products stand out even more from competitors.

Dynamic badging, meanwhile, automates badging to enable consistent messaging – such as ‘Low stock’ or ‘Online exclusive’ at scale.

Windsor will also roll out Taggstar social proof messaging to its app following the success of the web trial. This will help to improve product discovery for its app-based customers, too.

Testimonials

Freya Seeger, Sr. Director of Ecommerce at Windsor, says: “The fantastic results that Taggstar’s social proof conversion messaging delivered in the proof-of-concept have meant that we have quickly moved to test the benefits of even more targeted use of social proof.

“The implementation process was smooth and straightforward. The Taggstar team was organised, responsive, and proactive throughout the onboarding and testing phases. Integration was relatively lightweight, and communication between teams made it easy to move quickly and troubleshoot any questions along the way.

Seeger says that working with Taggstar has been a positive experience. She says: “The team has been collaborative, knowledgeable, and invested in helping us achieve strong results. They were attentive throughout the evaluation period and have continued to provide support, recommendations, and reporting as we continue to optimise. We appreciate that the Taggstar team is committed to helping us achieve our conversion targets and tailors ideas for our brand as to how to get there.” 

Testimonials

Peter Buckley, CRO at Taggstar, says: “Windsor’s commitment to a wider rollout shows that brands soon realise the potential of social proof on a broader scale in their business once they’ve seen the initial results. We are also proud that they recognise the commitment and drive that the Taggstar team dedicate to delivering the absolute best results for individual customers, specific to their brand needs and values.” 

“Windsor has seen the potential of conversion messaging and grasped it, and we are looking forward to seeing the further uplifts that a full offer from Taggstar will deliver for them.” 

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