Educational collaborations with experts in the field of CRO.
Explore the remarkable transformations our clients have achieved through their partnership with Nostra.
.png)
.png)
Across 317k sessions, Nostra cut Time to First Byte by more than 55% on Carve Designs' top 10 most-trafficked URLs, from the homepage to sale landing pages to new arrivals. Mobile conversion lifted 6.03%, revenue per visitor lifted 5.76%, and the math compounded into a 12.8X return.


Warmies paused Nostra in early October 2025 to run a 30-day in-house Shopify optimization sprint. Their team wanted to see how far they could push site speed through their own theme updates, app cleanup, and Shopify improvements. After the sprint, they turned Nostra back on November 9, 2025 to compare the optimized Shopify stack with Nostra layered back in.
.png)
.png)
Kut from the Kloth, a premium denim and apparel brand, is one of the best-performing brands in Nostra's portfolio. A full year into the partnership, Nostra ran a live holdout test on their production traffic — and shoppers who served the Nostra-accelerated experience were converting 17.01% higher than the control group.
The latest news and breakthroughs linked to Nostra.
Learn and gain valuable insights into the eCommerce industry.
Browse our highlighted videos, including client testimonials and CRO tournament recaps.
300+ enterprise and high-growth brands rely on Nostra to deliver instant site speed, stronger SEO performance, deeper personalization, and clean, actionable marketing data.