RANKNIBBLER

Why Image Dimensions Matter

When images lack width and height attributes, browsers do not know how much space to reserve. This causes Cumulative Layout Shift (CLS) — a Core Web Vital that Google uses as a ranking factor.

How to Fix

• Add width and height attributes to every <img> tag
• Use the image's natural dimensions or aspect ratio values
• Combine with CSS max-width: 100%; height: auto; for responsive images

How RankNibbler Checks This

RankNibbler scans every image and checks for width and height attributes. Missing dimensions are counted and flagged in the Accessibility tab.

Check this now. Go to the RankNibbler homepage and enter any URL for a free audit.