Open technical resource / RL Solution Web
HTML SEO
inspector.
Paste the HTML source of a page or open a local HTML file. The checks run entirely in your browser — no document content is transmitted to us.
01 / Input HTML
Max 2 MB. No URL fetching, no cookies required for this tool. Do not paste secrets or personal information.
02 / Inspection results
Scope and limitations. This inspection reads only the HTML supplied here. It cannot validate your actual response status, Google's selected canonical, live Core Web Vitals, links' destination status, JavaScript-rendered content or indexing. Results are developer diagnostics, not a Google ranking score.
Why this exists
Useful tools, open methodology.
Search quality requires explicit, testable assertions. This tool reports missing metadata, ambiguous canonical configuration, invalid JSON-LD syntax and basic semantic issues. It does not invent proprietary scores or pretend to reverse-engineer Google's ranking system.