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It is never retried in a browser.","recorded_at":"2026-10-17T23:48:33.106Z"}],"facet_check":null,"evidence_depth":{"note":"Deep read: the store's own data and 9 outside pages (the store's own product page; maker page; manual; review; regulator recall search (CPSC (United States)); regulator recall search (Health Canada); official safety test results (CREP, the Child Restraint Evaluation Program); official safety test results (NHTSA's Car Seat Ease of Use Ratings)), each read in full by RoboTrunk and trimmed to its main content, then written up and checked. Facts from the maker or a manual quote the page word for word; what real users report is summarised with a link to the page read. Recall status was checked directly with CPSC (United States), Health Canada: A CPSC (United States) recall search for Britax returned no recall records for this seat. The Health Canada dataset lists 23 Britax-related records, including Transport Canada booster-seat recalls from 2011 and 2015 that name no model, but none names the UpNGo backless booster, so no recall is known to apply to this exact model. Official safety test results were looked up directly with CREP, the Child Restraint Evaluation Program, NHTSA's Car Seat Ease of Use Ratings: CREP, the Child Restraint Evaluation Program (Australia and New Zealand): CREP's published list of 216 rated seats includes many Britax Safe-N-Sound seats but no UpNGo backless booster, and the list is complete, so this seat has no CREP rating. NHTSA's Car Seat Ease of Use Ratings (United States): NHTSA's published list of 126 rated seats includes Britax booster models such as Skyline and Highpoint but no UpNGo, and the list is complete, so this seat has no NHTSA ease-of-use rating. Not read, because they are member-only or refused RoboTrunk: Consumer Reports car seat ratings, Which? child car seat tests, JPMA certified products. Still open, with no evidence found: How thick is the seat padding, and does it feel firm or soft?; Does the Raven Black fabric or any coated part rub off or fade?; How long does it take to set up out of the box, and are tools needed?; What tends to break first with daily use?; Will it fit three across in a specific compact car?; Is there a minimum age or maturity requirement for using it?; Do the cup holders stay put or rattle when empty?; How well does it fit children at the lower 40 lb limit?; Is the cover easy to get back on after washing?; Does the seat stay put on leather vehicle seats?; What exactly comes in the box with the seat?.","tier":"complex","depth":"trimmed_read","model":"deepseek-flash","recall":{"note":"A CPSC (United States) recall search for Britax returned no recall records for this seat. The Health Canada dataset lists 23 Britax-related records, including Transport Canada booster-seat recalls from 2011 and 2015 that name no model, but none names the UpNGo backless booster, so no recall is known to apply to this exact model.","status":"no_recall_found","regulators_asked":["CPSC (United States)","Health Canada"]},"sources":[{"url":"https://top-stroll.myshopify.com/products.json","role":"the store's own data","retained":true},{"url":"https://top-stroll.myshopify.com/products/britax-up-n-go-backless-booster-car-seat","role":"the store's own product page","retained":true},{"url":"https://us.britax.com/shop/car-seats/upngo-backless-belt-positioning-booster-seat","role":"maker page","retained":true},{"url":"https://us.britax.com/support/instructional-videos-and-user-manuals","role":"manual","retained":true},{"url":"https://us.britax.com/support/frequently-asked-questions/belt-positioning-boosters","role":"maker page","retained":true},{"url":"https://www.consumerreports.org/babies-kids/car-seats/britax-upngo/m421481/","role":"review","retained":true},{"url":"https://www.saferproducts.gov/RestWebServices/Recall?format=json&Manufacturer=Britax","role":"regulator recall search (CPSC (United States))","retained":true},{"url":"https://recalls-rappels.canada.ca/sites/default/files/opendata-donneesouvertes/HCRSAMOpenData.json","role":"regulator recall search (Health Canada)","retained":true},{"url":"https://www.childcarseats.com.au/api/v1/child_car_seats/filter_data/retrieve?_format=json","role":"official safety test results (CREP, the Child Restraint Evaluation Program)","retained":true},{"url":"https://api.nhtsa.gov/childSeats?dataSet=ratings","role":"official safety test results (NHTSA's Car Seat Ease of Use Ratings)","retained":true}],"reasoning":"low","embeddings":"skipped in the deep lane: no embedding call is made here","safety_tests":{"asked":["CREP, the Child Restraint Evaluation Program","NHTSA's Car Seat Ease of Use Ratings"],"walled":[{"reason":"Consumer Reports' car seat ratings pages declare themselves not free to read (isAccessibleForFree false, read 25-Sep-2026); RoboTrunk never reads past a paywall.","programme":"Consumer Reports car seat ratings"},{"reason":"Which? shows its child car seat test results to members only (read 25-Sep-2026); RoboTrunk never reads past a membership wall.","programme":"Which? child car seat tests"},{"reason":"JPMA's certified products list refused RoboTrunk's named fetcher (HTTP 403, 25-Sep-2026). It is not retried under another identity.","programme":"JPMA certified products"}],"results":[{"status":"not_tested","summary":"CREP's published list of 216 rated seats includes many Britax Safe-N-Sound seats but no UpNGo backless booster, and the list is complete, so this seat has no CREP rating.","programme":"CREP, the Child Restraint Evaluation Program (Australia and New Zealand)","source_url":"https://www.childcarseats.com.au/api/v1/child_car_seats/filter_data/retrieve?_format=json"},{"status":"not_tested","summary":"NHTSA's published list of 126 rated seats includes Britax booster models such as Skyline and Highpoint but no UpNGo, and the list is complete, so this seat has no NHTSA ease-of-use rating.","programme":"NHTSA's Car Seat Ease of Use Ratings (United States)","source_url":"https://api.nhtsa.gov/childSeats?dataSet=ratings"}]},"searched_for":["maker_page","manual","recall_notices","owner_reviews","blogs","forums","video_reviews"],"open_questions":["How thick is the seat padding, and does it feel firm or soft?","Does the Raven Black fabric or any coated part rub off or fade?","How long does it take to set up out of the box, and are tools needed?","What tends to break first with daily use?","Will it fit three across in a specific compact car?","Is there a minimum age or maturity requirement for using it?","Do the cup holders stay put or rattle when empty?","How well does it fit children at the lower 40 lb limit?","Is the cover easy to get back on after washing?","Does the seat stay put on leather vehicle seats?","What exactly comes in the box with the seat?"]}}