Image ALT Text — guide cover
Accessibility · Guide

Image ALT Text for SEO & Accessibility

Write useful ALT attributes for people and search engines. Sourcer counts images missing ALT on every scan.

· Sourcer Editorial

ALT text helps screen readers and gives search engines context for images. Sourcer reports how many images on a page are missing an alt attribute in the weighted SEO score.

Rules of thumb

  • Informative images need a short, accurate description
  • Decorative images should use alt="", not a missing attribute
  • Linked images should describe the destination when the image is the only link text
  • Filename-as-ALT (“IMG_4032.jpg”) is worse than a meaningful description

How to verify

After you ship fixes, view the page source or run an SEO scan to confirm ALT coverage in the live HTML — not only in the CMS preview.