HTML source audit
Parse supplied HTML without fetching a site. Inspect titles, metadata, headings and image alternatives. This source-only tool is separate from the real-URL SEO checks.
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Raw data
Your input is sent to this site’s processing service. It is not saved as a tool history.
Method & interpretation
Parse supplied HTML without fetching a site. Inspect titles, metadata, headings and image alternatives. This source-only tool is separate from the real-URL SEO checks.
Read the method, limits and verification steps below before changing a production site.
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Parse strict JSON and produce formatted and minified output. Reject numeric values outside safe integer precision. Use strings for exact long identifiers and verify values after formatting.
Input processingTech Stack Detector
Inspect public markup and response-header signatures for technology clues. Include matched evidence and label the inference heuristic. Hidden stacks and removed signatures remain undetected.
Server-side checkURL inspector
Parse a public URL without visiting the destination. Preserve repeated query parameters and the fragment in the output. Parsing alone does not establish safety or availability.
Input processing