Dedicated Shopify & Shopify Plus Performance Studio
Shopify Speed & Core Web Vitals Audit Engine
Audit any Shopify store's mobile response latency, render-blocking Liquid scripts, Core Web Vitals, and checkout friction in real time.
Sub-1.5s Speed Benchmark
We achieve a verified sub-1.5s mobile response benchmark on duplicate staging, backed by our EightyFive Performance Warranty.
Zero Live Downtime
All performance engineering is conducted on duplicate staging environments. Your live store and checkout remain untouched until verified.
Recover Lost Sales
Eliminating script bloat and latency delivers an immediate 7% to 15% lift in mobile checkout conversion rate.
Speed & Vitals Sprint: Fixed $950 USD
Dedicated Liquid architecture & script optimization for Shopify and Shopify Plus storefronts. Delivered in 3 to 5 business days with zero downtime.
✓ Sub-1.5s Mobile Speed
✓ Staging Sandbox Build
✓ Script Deferral Overhaul
✓ EightyFive Performance Warranty
Frequently Answered
Everything You Need to Know Before Sprinting
Clear technical answers on our staging build process, security protocols, and performance guarantees.
How do you optimize our storefront without causing live downtime or breaking checkout? +
We work exclusively on a duplicate staging theme in your Shopify Admin. Your live theme, checkout funnels, inventory, and active customer sales continue running completely untouched. Once we achieve and verify the Core Web Vitals benchmark on the staging sandbox, your team reviews and approves it before anything is published.
Do you require our store master password or customer database access? +
Never. Under our strict zero-trust security protocol, we only request standard Shopify Collaborator access with permissions strictly restricted to Themes and Storefront code. We never access, process, or export your customer personal data (PII), orders, or payment credentials.
How is the Sub-1.5s Mobile Speed guarantee verified? +
The speed benchmark is verified on the duplicate staging environment under controlled mobile Edge testing protocols with third-party tracking widgets decoupled, isolating pure storefront and theme code efficiency. You receive a full side-by-side technical report comparing original load times against the optimized build.
Does EightyFive support non-Shopify e-commerce platforms? +
No. We are 100% laser-focused on Shopify and Shopify Plus. Because our entire engineering tooling, script deferral loaders, and Liquid benchmarks are built specifically for Shopify's architecture, our optimizations deliver deeper, safer, and faster results than generalist web agencies.
What is the sprint turnaround time? +
The standard Speed Sprint is completed within 3 to 5 business days following receipt of staging collaborator access. You receive regular milestone updates and a complete staging preview link upon completion.