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See How Fair Harbor Unlocked More Value Per Customer—Through Speed

A 37% reduction in Time to First Byte led to a $5 lift in AOV, giving Fair Harbor customers a faster, smoother path to purchase.

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Website Speed
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37% Faster
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AOV
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$3.5 Per Orders
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Established
2014
Industry
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Headquarters
New York, NY
Mission
Fair Harbor’s mission is to create high-quality, comfortable apparel using sustainable materials—specifically by recycling plastic bottles and repurposing ocean-bound waste. They aim to reduce environmental impact while delivering thoughtfully designed clothing that’s made to last.

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“Nostra’s upgrades gave our site a noticeable boost in speed and responsiveness. Customers were able to browse more seamlessly, which led to longer sessions and a measurable lift in AOV. They also delivered a clear audit outlining next steps to make the site even faster—helping us continue in the right direction.”

~ Fair Harbor Team

About Fair Harbor
Fair Harbor is a sustainability-focused apparel brand that transforms ocean-bound plastic into premium beachwear. With an expanding product line and a visually rich site experience, performance was becoming a critical growth lever - especially as mobile traffic surged.

The Challenge
Fair Harbor’s product discovery relies on smooth, fast navigation across PLPs and PDPs. But as their catalog grew, so did load times - causing friction that disrupted the shopping flow and suppressed conversion potential.

The Solution
Nostra implemented a high-speed experience for a segmented A/B test, optimizing core web vitals and cutting performance bottlenecks across key pages.

Key performance wins:

  • Time to First Byte (TTFB) decreased by 37%
  • Largest Contentful Paint (LCP) improved by 15.46%


These improvements made pages render significantly faster, allowing customers to start engaging with content almost immediately.

The Results

  • + $3.50 increase in average order value for users on the faster experience
  • Increased PDP views per session
  • Personalized upsells and cross-sells load instantly—on-site and in cart.
  • Smoother browsing → deeper product discovery → higher cart totals

Why It Worked
Site speed isn’t just a backend metric—it drives real-world behavior. With faster load times and quicker visual feedback, customers were able to browse more efficiently, view more products, and build bigger baskets. Small technical gains in speed created outsized gains in revenue.

With Nostra, upsells appear instantly -maximizing every cart.

Learn how Nostra will turn visitors into customers

300+ leading brands already trust Nostra to deliver blazing speed, better SEO results, more personalized site experiences, and more actionable marketing data.

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