{
 "rule": "Domain from the source URL (Gemini returns a redirect link, so its source title, which is the domain, is used). Leading www. removed. A class applies to the domain and every subdomain of it. Classes are my reading of each site's own homepage, checked 30 Oct 2026.",
 "classes": {
  "certifier": {"label": "NSF and other certifiers", "domains": ["nsfsport.com", "nsf.org", "bscg.org", "usp.org", "wetestyoutrust.com"]},
  "review": {"label": "Review, list and health-media sites", "domains": ["forbes.com", "healthline.com", "healthbritannica.com", "everydayhealth.com", "fitnessvolt.com", "allaboutcreatine.com", "garagegymreviews.com", "verywellfit.com", "health.com", "health.usnews.com", "medicalnewstoday.com", "goodhousekeeping.com", "yahoo.com", "treelinereview.com", "varsitystack.com", "betterbody.health", "usefulvitamins.com", "supplementchecker.co", "allaboutsupplements.com", "muscleformulas.com", "super-achiever.com", "nutrasmarts.com"]},
  "brand": {"label": "Brand sites", "domains": ["livemomentous.com", "momentousnutrition.com", "cellucor.com", "thorne.com", "kleanathlete.com", "proven4.com", "nordic.com", "nakednutrition.com", "myvega.com", "gardenoflife.com", "buckedup.com", "kineticasports.com", "beetrootpro.com", "livefluid.com"]},
  "sport": {"label": "Sport bodies and college athletics", "domains": ["usada.org", "ncaa.org", "ncaa.com", "ncaaorg.s3.amazonaws.com", "ita.sport", "athleticsintegrity.org", "ifbb.com", "jewellcardinals.com", "hiramterriers.com", "wou.edu", "ecu.edu", "uchicago.edu"]},
  "research": {"label": "Research, clinical and dietitian sources", "domains": ["nih.gov", "onlinelibrary.wiley.com", "mayoclinic.com", "higherlogicdownload.s3.amazonaws.com", "sn2g.com"]},
  "retail": {"label": "Retailers", "domains": ["amazon.com", "thefeed.com", "healf.com", "blueskyvitamin.com", "wheyokay.com", "nutriessential.com", "store.mayoclinic.com"]}
 },
 "other_label": "Other or unclear"
}