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Responsive imagesWhat it means for you.
Serving image files sized appropriately for each visitor's screen and resolution.
Growth Score · Activation
Definition
What it means
The srcset and sizes attributes let the browser pick the smallest suitable file. A phone does not need a file built for a large monitor. It cuts download size with no visible loss.
In Growth Score
Part of your score
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Guides that cover it
Checkout audit: 12 leaksTwelve places a sale leaks, in cost order, with a test and a fix for each one.When to redesign your siteHow to tell a real redesign need from vanity, and how to do it without losing rankings.Fast for real visitorsRead real visits, then fix images, scripts, layout shifts and the slow start.
Activation
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FAQ
Quick answers
What is Responsive images?
Serving image files sized appropriately for each visitor's screen and resolution.
Where does it sit in Growth Score?
It belongs to the Activation pillar, one of the 12 pillars your score is built from.
What should I read next?
Start with Image compression and Next-gen image formats, then browse the other terms in Activation.
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How does your site score?
Growth Score reads your site and scores its Activation pillar against sites like yours.
Your Growth Score is 100
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