Review images on a public page for important SEO, accessibility and layout signals. Check alt attributes, declared dimensions and lazy-loading usage to find practical image optimization opportunities.
Image SEO is broader than alt text alone. This checker focuses on observable markup signals and does not invent compression or visual-quality measurements.
SEO decisions are strongest when technical checks are reviewed together with page quality, search intent and site structure. Use the result here as evidence for the specific task, then verify important changes on the live website.
It reviews observable image markup such as alt attributes, width and height information and lazy-loading signals so you can identify common accessibility, layout and performance opportunities.
Informative images generally benefit from meaningful alternative text, while purely decorative images may appropriately use an empty alt attribute. Alt text should describe purpose, not be stuffed with keywords.
Declared dimensions can help browsers reserve layout space before an image loads, reducing layout movement. Actual performance also depends on file size, format, responsive sources and delivery.