Checks · image

Images Missing Size Attributes

Opportunity image.missing_size

What it means

<img> tags without width and height. The browser cannot reserve space before the image loads, so the page jumps — the Cumulative Layout Shift metric in Core Web Vitals.

How to fix it

Add width and height attributes matching the image's aspect ratio; CSS can still scale it.

Where to find it in Truelint

Open the Issues pane on the right of the workspace and select Images Missing Size Attributes. The grid filters to every affected URL and the detail pane shows the specific finding for each. Export the list with Export → Current view, or from the API:

GET /api/v1/crawls/{handle}/issues/image.missing_size