- Task
- Maintain a catalog where each size and color is listed under a separate item, in a condition suitable for product advertising.
- Solution
- OpenCart 3, sitemap index with 42 submaps, three language versions. Remarketing module transmits product_id to Google Ads and Facebook, GA4 ecommerce events are enabled.
- Result
- Measured on August 1, 2026: 115,456 product items, the figure was confirmed by two independent methods with a difference of 2.4%; 129 categories and 334 brands. The labels show 80B, 75E, XL, 36-41 - this is the level of size and color, not models, and without a grouping field, such a catalog gives double impressions. Defects that are critical for the catalog: out of 150 random product addresses on the sitemap, 50 return 301, and all 50 lead to a different position — a different size or color; on the main 118 img tags, and none are in WebP format.