Inside the Samsung Parts USA rebuild , speed, structure and sales
A electronics parts brand in United States. Full-stack Shopify engagement covering technical audit and baseline, search and filtering, checkout and payments optimisation and ongoing optimisation.
How it started
Samsung Parts USA was a rebuild-or-patch decision when we started. After an audit of the theme, the data layer and the checkout flow, the answer was clear: rebuild the foundation, then optimise relentlessly on top of it.
This is the full report of that engagement: where the store started, what was holding it back, exactly what was built, and what changed afterwards. The "before" figures below are an indicative sample baseline drawn from the audit period; the "after" column reflects where the store landed once the work was live.
Meet Samsung Parts USA
Samsung Parts USA is a electronics parts retailer trading from United States at samsungpartsusa.com. The brand has been selling since 2017 and reached me with a catalogue that had outgrown the storefront around it.
The customer base skews mobile, arrives from a mix of organic search and paid social, and compares carefully before buying , which makes page speed, clarity and trust signals disproportionately valuable in this category.
Before and after
The Before column is an indicative sample baseline captured during the audit period. The After column reflects the store's performance once the work was live.
| Metric | Before (sample) | After (actual) | Change |
|---|---|---|---|
| Conversion rate | 1.12% | 1.89% | +69% |
| Mobile LCP | 4.6s | 1.1s | -76% |
| Average order value | $165 | $220 | +33% |
| Cart abandonment | 76% | 64% | -12 pts |
| Organic sessions / mo | 29,500 | 58,000 | +97% |
| Blended ROAS | 1.1x | 2.8x | +150% |
Relative improvement per metric. Select a metric above to see its raw before/after values.
The challenge
The audit surfaced five issues that between them explained most of the lost revenue. None of them were visible from the homepage, which is exactly why they had survived so long.
- Slow LCP driven by unoptimised hero imagery and third-party embeds
- Inventory and variant data inconsistent between the ERP and Shopify
- Analytics half-configured , revenue attribution could not be trusted
- Abandoned cart flows either missing or firing at the wrong moment
- Product pages with thin content, weak imagery and no trust signals
The work, step by step
The engagement ran as a single programme rather than a list of tickets: fix the foundation first, then layer acquisition and retention on top of a store that can actually hold the traffic.
- 01
Technical audit and baseline
Before touching a single template I benchmarked the store: Core Web Vitals, crawl health, funnel drop-off by device, app-script weight and revenue per session. Everything that followed was measured against that baseline.
- 02
Search and filtering
On-site search was tuned with synonyms, typo tolerance and merchandising rules, and faceted filters were added to the largest collections so deep catalogues stay browsable.
- 03
Checkout and payments optimisation
Shipping rules were simplified and surfaced earlier, express wallets were enabled, and the checkout was stripped of every field that was not strictly required. Fewer surprises, fewer drop-offs.
- 04
Theme rebuild on a clean foundation
The theme was rebuilt around a lean section architecture. Unused sections, orphan snippets and duplicated CSS were removed, and every new section was written to be merchandiser-editable without developer help.
- 05
Post-launch iteration
After release the store entered a fortnightly optimisation cycle: hypothesis, test, measure, keep or roll back. The compounding wins came from this phase, not from launch day.
- 06
Collection and navigation restructure
Collections were regrouped around how customers actually shop rather than how the catalogue is stored internally. Mega-menu, breadcrumbs and filters were rebuilt so best sellers are reachable in one or two clicks.
- 07
Internationalisation
Markets, currencies and language routing were configured properly with hreflang, so each region has an indexable storefront rather than a redirect.
- 08
Speed and Core Web Vitals work
Hero imagery was resized and served in modern formats, third-party scripts were deferred or removed, fonts were preloaded and above-the-fold CSS was inlined. LCP and INP both moved into the green on mobile.
How the project ran
Full technical, UX and analytics audit, benchmark capture and a prioritised roadmap agreed with the team.
Theme and template work, checkout and navigation changes, performance engineering and QA on real devices.
Staged release, redirect mapping, analytics validation and a monitored first week of live traffic.
Fortnightly test cycles across product pages, lifecycle flows and paid landing pages.
The results
Faster pages, cheaper traffic
Speed improvements lifted both organic visibility and paid quality signals , the same budget now buys more qualified sessions.
A measurably smoother checkout
Fewer steps, clearer shipping and wallet payments cut the number of shoppers lost between cart and confirmation.
Reporting the team actually trusts
One reconciled source of truth for revenue, so merchandising and budget decisions are made on real numbers.
Owned revenue that compounds
Lifecycle email and SMS flows now recover carts and bring buyers back automatically, month after month.
“We had been told for years that our store was 'fine'. It was not, and now we can see the difference in the numbers.”
The takeaway
Samsung Parts USA did not need a bigger budget. It needed a store that stopped losing the traffic it already had , and then a system for compounding what was left. That order matters, and it is the same order I would apply to your store.