Image over 1 MB
What this means
A crawled image file is larger than 1 MB, which dominates load time on the pages that embed it, particularly on mobile connections.
How to fix it
Resize the image to the largest dimensions it is actually displayed at and re-encode it with compression.
Fix effort
This check needs a developer fix: it turns on a routing, hosting or infrastructure decision that no automatic edit can make safely.
Authoritative source
https://developers.google.com/search/docs/appearance/google-images
Find every page this affects
CrawlX runs this check — and 161 others — across your whole site, ranks the findings by estimated impact, and opens the fixable ones as pull requests. Free for 500 URLs.