Website Standards Checker

Audit strict HTML5 compliance

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About Website Standards Checker

Search engines and screen readers rely on strict adherence to HTML5 standards to properly index and present your content. This tool natively audits a given URL for mandatory structures: `<!DOCTYPE html>` presence, language and charset declarations, mobile viewport tags, correct descending heading hierarchy (H1 -> H4 without erratic jumps), and tracks images missing accessibility `alt` texts.

Website Standards Checker Features

  • Validates DOCTYPE and Charset Meta tags
  • Verifies Mobile Viewport optimization
  • Checks for contiguous Heading hierarchy maps
  • Calculates Image Alt-Text compliance ratios

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