Why does alt text matter?

It describes images to screen readers and to search engines, and it is how image search understands what an image shows.

Why set width and height on images?

It reserves space before the image loads, so the page does not shift — one of the Core Web Vitals.

Does this check image file size?

A full weight audit (every image, its bytes and format) is part of the paid deep crawl. The free check samples a few URLs for reachability.

Are your images accessible, stable and actually loading?

Missing alt text hides images from screen readers and image search. Missing width and height make the page jump as images load, which hurts Core Web Vitals. And a broken image URL is invisible until someone notices the blank box.

Reads images in a bounded sample of key pages and checks a few image URLs resolve. Nothing is stored.

How this check works

Shipwork parses the images in a sample of your key pages, counts those without alt text and without width/height attributes, then fetches a few image URLs to confirm they load. It reads raw HTML, so it sees what a crawler sees rather than a rendered screenshot.

Questions

Why does alt text matter?: It describes images to screen readers and to search engines, and it is how image search understands what an image shows.
Why set width and height on images?: It reserves space before the image loads, so the page does not shift — one of the Core Web Vitals.
Does this check image file size?: A full weight audit (every image, its bytes and format) is part of the paid deep crawl. The free check samples a few URLs for reachability.