Magebytes

CASE STUDY · HEADLESS MAGENTO

How Northfield Outdoors cut load times by 74% moving to a headless storefront.

A £40M outdoor equipment retailer running 40,000 SKUs on ageing Magento 1 — product pages taking close to two seconds to respond and a checkout losing customers on mobile.

74%
Faster LCP
19%
Conversion Lift
11 wks
Time to Launch
0
Orders Lost
[ Screenshot / before-after visual of the storefront ]

The Challenge

Northfield's Magento 1 storefront had outgrown itself. Product pages took close to two seconds to respond, checkout dropped customers on mobile, and every catalogue update risked downtime during business hours — with peak season approaching and 40,000 SKUs at stake.

The Approach

We migrated onto Adobe Commerce behind a headless Next.js storefront, mirroring live data on parallel infrastructure until it matched the old site order-for-order. A complete 301 map preserved every indexed URL, and a Varnish caching layer tuned to their traffic shape absorbed peak load. The checkout was rebuilt from the ground up for mobile.

Results

The cutover happened over a single weekend with zero downtime and no loss of search visibility. Organic revenue was up 38% within a month, and the rebuilt checkout lifted conversion by 19%. When Black Friday arrived, the caching layer absorbed a 9x traffic spike without incident.

Before
LCP
3.4s
TTFB
1.8s
CLS
0.24
After
LCP
0.9s
TTFB
220ms
CLS
0.02

“They migrated our entire catalogue over a weekend and we didn't lose a single order. Monday morning, the site was just faster.”

— Sarah Lindqvist, Head of Ecommerce, Northfield Outdoors

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