Media assignment and thumbnail edition
Control thumbnail output and image selection in the Erlebniswelten element. A small tile should not needlessly request the high-resolution original.
Compare the original media with the preview images used in the storefront. Decisive is the really requested thumbnail URL in the respective layout, not only the file stored in the backend.
Where to check the setting in Shopware
Compare the media assignment of the product with the alt data and the actually selected thumbnail file. A large original is not automatically a problem if the theme loads a suitable small variant; the file requested in the browser is decisive.
Example of this specific finding
Illustrative control case: A product tile with 360 CSS pixels wide loads the 4,000 pixels wide original. What matters is the variant loaded in the network protocol, not the file name in the CMS.
follow-up audit in Shopware
Check a product image in listing, detail view and on mobile devices. After changes, also consider existing image variants and their cache.
For multiple screen widths, check the selected image URL, file size and sharpness. On high-resolution displays, higher natural resolution may make sense.
Derogations and scope
A detailed view with Zoom may require larger files than a preview list. Balancing quality and transmission effort against actual use.
Related: Shopware 6 with Storefront. Self-hosted and SaaS offer different access and configuration options; view your own headless frontends separately.
Classify the general error
Definition, system-independent causes and further correction examples: Check image weight, output size and subject together
Configuration and test signal documentation
Shopware 6: Media of the product