Large online store:
a new design and more than 3 times the organic traffic.
The dietary supplements store ran on OpenCart with PHP 7.3. We made a new design, and the brief also included an upgrade to PHP 8.4, faster loading and technical SEO.

Problem
The store ran on OpenCart with PHP 7.3. The owner wanted a new design, PHP 8.4, a time to first byte under 600 ms and technical SEO.
DetailsSolution
We made a new design with a menu of 8 main categories, a drop-down menu with the subcategories and filters by price and brand.
DetailsAn old OpenCart store on PHP 7.3
The client is an online store for dietary supplements. The store ran on OpenCart with PHP 7.3.
The brief: a new design, a move from PHP 7.3 to PHP 8.4, faster loading with a time to first byte (TTFB) under 600 ms and technical SEO for the store.
A new design with a category menu and filters
The menu shows 8 main categories. Each one opens its subcategories in a single drop-down menu. Next to the banner on the home page is the list of best-selling products.
Categories have filters by price and by brand, and each brand has its number of products next to it. The product page shows the product's ratings and comments, availability, code and weight.
More than 3 times the organic traffic
Improving speed, improving the user experience with a convenient, good-looking and logical UX = increasing sales.
Within a few months of the new site, organic traffic from Google more than tripled. The time to first byte (TTFB) is under 400 ms, against a target of under 600 ms.

Over the last 3 months, the organic traffic that Ahrefs estimates for the store more than doubled. The number of answers in Google's AI Overviews that cite the store grew about 4 times.

The store is also ready for AI agents: on 18 October 2026, isitagentready.com gave it 100/100, Level 5 Agent-Native.

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