New: Cookbooks and AI ExplanationsStep-by-Step recipes to solve problems connected to Roadmaps and Cheat Sheets. Need more details? Use AI buttons for structured and simple explanations with concrete examples throughout the whole platform.Take a look
The hero image is huge, and it still loads last.
What you'll have at the end
The hero image sitting in the page's own HTML with a high fetch-priority hint already on it, and both LCP numbers, the slow one and the fixed one, written down side by side.
You need
A live page you can open in a Chromium browser with developer tools, where the largest thing rendered at the top is a single image.
Not covered
Shrinking or converting the image file itself into a smaller format; this only changes when and how urgently the browser fetches whichever file you already have.
A chat widget and stray analytics tags tanking your load time
if the hero image is already in the markup with a high-priority hint and still slow, check whether third-party scripts are the ones eating the bandwidth it needs
Wire web-vitals into your own analytics
once your own reload confirms the fix, wire up field measurement so real visitors show the same improvement your own browser did
Checked 25 Aug 2026
Part of the Core Web Vitals and Performance Metrics cookbook