Shoppers are browsing, and buying, on their phones more than ever. Last year, 57.5% of Cyber Monday sales happened on mobile devices, representing $8.2B in spending.

Your site is your digital flagship, and during Black Friday/Cyber Monday (BFCM), mobile is where that flagship gets tested. A fast, friction-free experience is what separates a bounce from a conversion.

Start With the Basics

Before diving into advanced optimization, make sure the fundamentals hold up. On mobile, even small friction points cost you sales.

• Make sure banners scale for smaller screens and fonts stay legible
• Prioritize speed; fast-loading product pages are critical
• Keep CTAs bold and visible without extra scrolling

Mobile optimization is about making the entire journey easy, from discovery through checkout as seamless as possible.

• Can customers add to cart with one tap?
• Is checkout short and thumb-friendly?
• Are slow-loading elements or intrusive popups getting in the way?

Tips for Making It Work

Once the foundation is solid, refine through testing. Every promo, discount, and traffic spike during BFCM flows back to your site, so treat it as the control center for the entire campaign.

• Use sticky add-to-cart buttons and one-tap payment options
• Test banners, discount codes, and checkout flows on iOS and Android before BFCM weekend
• Minimize popups that are difficult to close on a small screen

Case Study Spotlight

Sweet Loren's Mobile-First Site Built for Scale

For Sweet Loren's, we migrated the site to Shopify 2.0 (Shopify's theme architecture built for faster, more flexible storefronts) using modular, mobile-first templates built to handle high traffic and seasonal promotions. The new experience made it faster for shoppers to discover products, browse recipes, and convert, which matters for high-volume moments like BFCM and for building a digital flagship that supports long-term growth.

Optimizing Bundles and Subscriptions With Once Upon a Farm

For Once Upon a Farm, we designed a subscription and bundle builder optimized for mobile, giving busy parents a simple way to shop on the go. Streamlining the path to purchase made the site more effective at driving repeat orders and maximizing average order value (AOV) during peak shopping moments.

Is Your Mobile Site Ready for BFCM Traffic?

Most of the friction that costs brands sales during Cyber Week shows up first on mobile: a slow product page, a cluttered checkout, a popup that won't close. These are exactly the gaps Val Geisler, our Director of Strategy, and Christine Carforo, our Director of Design, look for during our live UX teardowns ahead of the BFCM code freeze.

Submit your site for consideration, and you could win one of five Nintendo Switch 2s and a $200 discount towards our paid audit and BFCM roadmap.

Submissions close September 16th. Submit your site for a teardown.

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