Scan HTML for images and verify alt attribute presence, length, keyword inclusion, and descriptive quality.
Paste an HTML document or fragment to inventory its img elements and review their alt attributes. The checker reports whether alt is present, evaluates text length, tests for a requested keyword, and highlights wording it judges insufficiently descriptive. It helps locate image descriptions that need attention, but it cannot determine an image's purpose from markup alone. A common mistake is treating an empty alt attribute as equivalent to a missing one. alt="" can be intentional for a decorative image, while an informative image normally needs meaningful alternative text.
For each img element in the supplied HTML, the audit checks whether an alt attribute exists and evaluates the value through its length and keyword tests. Attribute presence is a markup question, while appropriateness depends on context. An empty value may be correct for decoration, but the same value would omit information if the image communicates content.
Length, keyword inclusion, and descriptive-quality findings are review signals rather than proof that an alt value is useful. A keyword match establishes only that the requested term appears. Likewise, text can satisfy a length check while remaining vague, repetitive, misleading, or stuffed with search terms. Read flagged and passing values alongside their images before revising them.
No. The checker can identify alt-attribute issues and useful review signals, but conformance depends on whether each non-text item has an appropriate alternative for its purpose. That judgment may require seeing the rendered image, nearby text, links, controls, and the experience presented to assistive technology. Treat the report as focused evidence, not a conformance certificate.
No. Informative images generally need text that conveys their relevant content, and functional images need an alternative that communicates the function. A purely decorative image can appropriately use alt="" so it does not add redundant noise. Omitting the attribute is different from deliberately providing an empty value, so review those findings separately.
The behavioral notes were checked against the browser implementation. Standards and primary references below define the relevant format, formula, or platform behavior.
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