WordPress fix guide
Responsive Images Missing srcset or sizes Attributes on WordPress
Images are served without srcset or sizes attributes, forcing browsers to download full-size images regardless of the viewport. This wastes bandwidth on mobile and smaller screens.
Issue ID: CWV-SRCSET-SIZES-001Severity: moderateEffort: S
Why this matters
Images are served without srcset or sizes attributes, forcing browsers to download full-size images regardless of the viewport. This wastes bandwidth on mobile and smaller screens. This affects load speed, Core Web Vitals, and how many visitors stay long enough to convert.
WordPress fix path
How to fix this on WordPress
Use the page editor, theme, or SEO tooling depending on where this issue lives.
- 1Inspect the page and theme output.
- 2Apply the fix in the most direct place.
- 3Publish and validate with a re-audit.
After you fix it
- ✓Inspect key images in DevTools and confirm srcset and sizes attributes are present
Same fix, other platforms
Fix responsive images missing srcset or sizes attributes on a different CMS
Other fixes
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