Commodity Content / Information Gain Checker

Compare what your page says with 3–5 competitors. The deterministic first layer shows what appears restated, what remains lexically unique, and whether visible first-hand artifacts support an Experience proxy.

Built by Patrick Stox

Four different questions, four different axes

Each axis answers a different content question. Open the tool that matches the one you are asking.

Content GapMissing topics Content CompletenessMissing element formats Answer-ReadyCitability of what exists Commodity / Information GainNovelty of what exists

Pages to compare

Paste text or HTML for the most private path. When a paste is empty, the tool fetches that row’s public URL through the site’s bounded fetcher.

Your target page

Competitor 1

Competitor 2

Competitor 3

Competitor 4 (optional)

Competitor 5 (optional)

Checks run from our server; we fetch the URL you enter and don't keep the results. Pasted content stays in this browser. A URL is fetched only when its paste field is empty; the optional model pass sends only bounded extracted target claims after you request it. Anonymous run-level outcome counters may be used for aggregate research; URLs, domains, IPs, and identifiers are never included, and no statistic is released below 100 runs.

Method last reviewed Jul 18, 2026.

Feedback
Report a bug

Found something broken in Commodity Content / Information Gain Checker? Let us know what happened — this goes straight to a private triage queue, not a public list.

What will be sent 
 No tool inputs, uploads, pasted source, complete results, query parameters, or URL fragments are attached automatically. You can edit or remove the selected passage above. Browser and anti-abuse metadata is processed for spam prevention. 
  
 
  
 
 
  
 
 
   
  
 
 
Sample report
 
Example data — the same passage loaded by “Try an example”
 
The built-in example pastes one short passage as the target and the same passage as three competitors. Because every supplied page restates the same claims, the deterministic first layer reports the worst-case commodity signal:
 
     
  • Restated overlap — 100% of bounded target claims also appear across the supplied competitors.
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  • Novelty — 0% of target claims are unique within the supplied corpus.
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  • Experience share — 0% first-hand-with-artifacts (the sample carries no original numbers, described methods, or original media).
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  • Commodity flag — Flagged, because overlap is high and artifact evidence is low.
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With real, distinct pages the numbers spread out. Read the example as a demonstration of how each card behaves at the commodity extreme, not as a typical result.
 
 
 
How to use it
 
     
  1. Paste your target page (text or HTML) and three to five competitor pages. Leave a paste field empty and supply that row's public URL to use the bounded fetcher instead.
    2.  
  2. Choose Compare pages. The four score cards summarize restated overlap, novelty, the Experience proxy, and the commodity flag.
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  3. Read the Target claim evidence table and the competitor statements that may be more specific list to see where you restate others and where a competitor states something more precisely.
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  4. Optionally run the model-assisted Experience split. It classifies only the extracted target claims and is rejected unless every first-hand label carries a supported artifact type and an exact evidence quote.
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  5. Treat every candidate addition as a review cue. Verify each for accuracy, usefulness, and support before publishing.
    6.  
 
 
How it works
 
     
  1. Paste the target and three to five competitor pages, or supply public URLs for the bounded fetcher.
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  2. The browser extracts a bounded claim set and compares token overlap while preserving numeric evidence.
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  3. Visible original numbers, described methods, and original-media language support a separate Experience proxy.
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  4. Only high overlap combined with low artifact evidence creates the structured “add information gainInformation gain is how much new information a page adds beyond what a searcher has already seen in prior results on the same topic — novelty relative to the existing corpus, not general content quality. The term comes from a granted Google patent that Google has never confirmed using in live ranking.” task.
    5.  
  5. Review every candidate addition for accuracy, usefulness, and support before publishing.
    6.  
 
What the results mean
 
     
  • Restated overlap — the share of bounded target claims that also appear, lexically, across the supplied competitors. A high share means the page mostly says what every competitor already says.
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  • Novelty — the share of target claims that are unique within the bounded supplied corpus. Unique is a review cue, not proof of originality, accuracy, or usefulness.
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  • Experience share — an artifact-bound proxy for first-hand content: visible original numbers, a described method, or original-media language. It is explicitly not an E-E-A-T score; Google publishes no such score.
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  • Commodity flag — raised when restated overlap reaches 65% while first-hand artifact evidence stays low. It flags “nothing only you can say,” not a ranking prediction.
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  • “Add information gain” task — appears only when high overlap combines with low artifact evidence, prompting you to add something only you can say: your own data, your test, your before-and-after.
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Features
 
     
  • Deterministic, repeatable lexical overlap that preserves numeric evidence — no model required for the first layer.
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  • Unique-statement extraction across a bounded three-to-five competitor corpus.
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  • Artifact-bound Experience proxy, corroborated (not overridden) by whole-page element detectors.
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  • Optional, strictly validated model-assisted Experience split that rejects the whole response unless every label is evidence-backed.
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  • A per-claim evidence table plus a “competitor states it more specifically” list.
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  • Paste-first privacy: content is analyzed in your browser, and a URL is fetched only when its paste field is empty.
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Limitations
 
     
  • Lexical, not semantic — paraphrased or reordered claims can lower the score even when the meaning overlaps.
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  • Bounded corpus (three to five competitors with disclosed character and claim caps); results describe only the supplied pages.
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  • Novelty is not originality or accuracy; a unique claim can still be wrong or unhelpful.
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  • The Experience proxy is not an E-E-A-T score, and the commodity flag is not a ranking prediction.
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  • The optional model pass sends only extracted target claims after you request it and adds no ranking claim.
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Frequently asked questions
 
Is this a plagiarism checker?
No. It compares bounded claims using disclosed lexical overlap. It cannot establish authorship, publication order, copying, accuracy, or originality.
Does novelty prove information gain?
No. A statement can be lexically unique and still be inaccurate or unhelpful. Treat novelty as a review cue and verify every proposed addition.
What does the Experience share measure?
It is an artifact-bound proxy for visible original numbers, described methods, or original media. Google has no public E-E-A-T score, and this tool does not claim to reproduce one.
Where is my content processed?
Pasted content is analyzed in your browser. A public URL is sent to the bounded fetcher only when its paste field is empty. The optional model pass sends only extracted target claims after you request it.
 
 
Next stepAI Content Brief Generator — generate the corrected version.

Explore more
ToolCitation Gap CheckerToolAI Content AuditToolChunk TesterArticleInformation GainArticleContent FreshnessArticleSEO Audit Checklist
 
 
 
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