case study

Winning BFCM 2024 With Speed, Conversion, and Confidence Going Into 2025

See how Denver Modern boosted site speed by 48% and increased conversions by 8.46% during BFCM 2024 — proving faster sites drive real revenue.
TTFB (Time to first Byte):
48% Faster
CVR Lift
8.46%
CVR Lift
8.46%
Established
2018
Mission
Denver Modern, a leading modern furniture brand, partnered with Nostra.ai ahead of Black Friday Cyber Monday 2024 to optimize site speed and unlock hidden conversion potential. The goal was clear: improve the shopping experience, reduce load times, and increase CVR, all while maintaining an unbiased measurement through Nostra’s built-in holdout methodology.
Headquarters
Denver
"BFCM isn’t just about discounts — it’s a test of performance. With Nostra, speed became our edge — and in 2025, we’re doubling down to stay ahead."
Matthew Osier
Sr. eCommerce & Digital Marketing Manager
01

Challenge

For brands selling higher-value products, trust is built in milliseconds. When shoppers are investing in luxury or large-ticket furniture, every delay or friction point erodes confidence — leading to hesitation, second-guessing, or abandonment.

With high traffic surges during BFCM and a visually rich ecommerce experience, Denver Modern’s site needed to perform flawlessly. Slow load times, especially on first-time sessions, risked losing high-intent shoppers during their most competitive weekend of the year.

As a design-forward brand known for craftsmanship and quality, Denver Modern understood that performance isn’t just technical — it’s emotional. A fast, seamless experience signals reliability and reinforces the premium perception customers expect from high-AOV products.

02

Nostra’s Approach

Nostra implemented its Edge Delivery Engine, optimizing Denver Modern’s site at the server level to accelerate page loads and improve real-user performance metrics.

To measure true incrementality, Nostra always maintains a 5% holdout group — a segment of visitors who remain on the unoptimized version of the site. This ensures every uplift in CVR and performance can be attributed directly to Nostra’s technology, with no inflated or biased reporting.

This transparent, data-driven approach gave Denver Modern’s team confidence to quantify how faster performance directly impacts conversion — particularly among high-consideration shoppers comparing multiple options.

03

Results

Performance Impact (BFCM 2024):

  • TTFB (Time to First Byte): ↓ 48% faster
  • LCP (Largest Contentful Paint): ↓ 21% faster
  • FCP (First Contentful Paint): ↓ 35% faster

Conversion Impact:

  • +8.46% CVR lift vs. the 5% holdout group

Denver Modern ended BFCM 2024 with stronger performance benchmarks and renewed confidence heading into 2025. The partnership proved that even marginal speed improvements compound into significant conversion gains — especially for premium brands where trust and performance go hand in hand.

THE IMPACT

+8.46% Conversion Rate Lift

Measured against a 5% holdout group during BFCM 2024 — proving that faster load times directly drive more purchases on high-AOV products.

Trust Built in Milliseconds

For luxury furniture shoppers comparing options, a seamless experience signals reliability — reinforcing the premium perception Denver Modern's brand demands.

BFCM-Ready Performance

Handled high traffic surges flawlessly during the most competitive weekend of the year — no slowdowns, no lost high-intent shoppers.

Transparent Incrementality

Nostra's always-on 5% holdout group ensured every uplift was real and attributable — giving Denver Modern's team confidence in the data, not just the dashboard.

Turn Visitors Into Customers

300+ enterprise and high-growth brands rely on Nostra to deliver instant site speed, stronger SEO performance, deeper personalization, and clean, actionable marketing data.

Trusted by 300+ brands

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