Issue: Accessibility Hygiene Low

Basic accessibility and UX issues — missing html lang, images without alt, unlabelled form elements.

What this means

SEODiff checks three basic accessibility signals. While low severity for SEO, these affect user experience and are easy to fix. The JSON field is a11y_basic.

Checks included

Missing <html lang>: The document language isn't declared, which affects screen readers and AI language detection.
Images without alt: Images missing alt text are invisible to screen readers and AI systems.
Unlabelled inputs/buttons: Form elements without associated labels.

How to fix

Add lang="en" (or appropriate language) to the <html> tag.
Add descriptive alt text to all meaningful images.
Associate labels with form inputs using <label for="...">.

Issue: Accessibility Hygiene Low

What this means

Checks included

How to fix

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