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Instant Non-Commodity Score estimate for any page, computed on-device with Laurelin Labs' canonical NCS maths. How far is the page you are reading from commodity content? NCS Checker grades any web page with the Non-Commodity Score, Laurelin Labs' four-vector measure of whether content says anything an AI answer engine could not already get from the pages that outrank it. One click on any article gives you a 0 to 100 composite, a band verdict (Commodity, Weak, Developing, Strong), and the evidence behind every number. WHAT YOU GET IN ONE CLICK Empirical telemetry: hard numbers, engineering units and data tables, measured as a saturating density. Entity connectivity: JSON-LD entities resolving to external authorities, plus outbound links to authoritative domains. Both computed instantly on your device with the same canonical maths as the Laurelin Labs scoring tool, on the page's raw HTML. You also get a ranked list of on-page fixes: byline, schema, citation and structure gaps, clearly labelled as hygiene rather than part of the score. BRING YOUR OWN KEYS FOR THE DEEPER VECTORS (OPTIONAL) Add your own Anthropic, OpenAI or Gemini API key in settings and the extension also grades experiential evidence: first-hand actions, conditions and measured outcomes, judged with quoted proof. An Anthropic key runs the canonical judge, identical to the site tool. Add your own DataForSEO credentials and it measures information gain too: what the page adds that the live Google top 10 does not already say, using the same embedding model and maths as the full score, running in your browser. All provider costs sit on your own accounts, never ours. PRIVACY Out of the box, nothing leaves your device: the score is computed locally and no data is collected, ever. If you add an AI key, the readable text of a page you score is sent to your chosen provider under your key when the judge runs. If you add DataForSEO credentials, one SERP lookup per score uses your DataForSEO account and the extension fetches the top-ranking pages to compare against, only during a score you started. Remove your keys and both permissions are handed back. Laurelin Labs never sees your keys, your pages or your scores. WHO IT IS FOR Content strategists, SEO and AEO consultants, and editors who want to know before publishing whether a page will be cited by AI search or paraphrased into invisibility. Built by Laurelin Labs, the AI search visibility consultancy. The full calibrated Non-Commodity Score, measured server-side against the live SERP corpus, is at laurelinlabs.com/tools/non-commodity-score.