Unitag is certified by GS1 France<\/strong> on the GS1 Digital Link URI Standard structure and the QR Code symbol, and listed as a GS1 Solution Provider. The platform tracks 2.4 million scans daily across 189 countries.<\/p>\n<\/div><\/div>\n\n Start with the simple case. A shopper scans the QR code with a smartphone and lands on the default destination the brand chose, typically the product page. Nothing new there.<\/p>\n The GS1 Digital Link standard adds one possibility: a scanning system can say what it wants, by adding a parameter to the address inside the QR code. The request looks like this:<\/p>\n Translation: “for this product (GTIN 09506000134352), give me the nutrition information”. The resolver, the service that receives every scan, reads the request and routes the reader to the destination the brand declared for that link type. If no destination matches, the scan falls back to the default link, so nothing ever breaks.<\/p>\n Three properties make it dependable:<\/p>\n The GS1 standard defines a vocabulary of types, each with a technical identifier. Here they are as they appear in the Unitag console, with what each one does:<\/p>\n Regulatory.<\/strong> Consumer.<\/strong> Food.<\/strong> Healthcare.<\/strong> B2B.<\/strong> Each type gets its own detailed page in our glossary; this guide is the table of contents.<\/p>\n A link type can also declare its audience: any audience, consumer, patient, healthcare professional, retailer, supplier or recycler. A destination reserved for an audience is only served when the scan explicitly asks for it. One bottle can carry the public page, the retailer sheet and the recycler instructions, and none of those readers ever sees the others\u2019 destinations.<\/p>\n This works alongside smart redirects, which adapt the destination to the scanner\u2019s language, country or device. The difference fits in one line: smart redirects personalise (who is scanning, implicitly), link types multiply (what is being asked, explicitly). Together: one printed QR code, every destination, every audience, every language, with scan analytics<\/a> per link type.<\/p>\n\n Bonduelle already structures its ranges with GS1 Digital Link QR codes<\/strong><\/p>\n <\/div>\n Read the case study \u2192<\/a><\/p>\n<\/div><\/div>\n\n Three situations cover most real use:<\/p>\n What is a GS1 link type?<\/strong> A typed destination declared behind a GS1 Digital Link QR code, served by the resolver when a scan explicitly requests that type ( Do I need to reprint to add a link type?<\/strong> No. Link types are declared in the console after printing; the printed QR code never changes.<\/p>\n What happens if a requested type does not exist on a product?<\/strong> The scan is served by the product\u2019s default link. A request never falls into a void.<\/p>\n How are link types different from smart redirects?<\/strong> Smart redirects adapt the destination to the person scanning (language, country, device), without them asking anything. Link types answer an explicit request from the scanning system. The two combine on the same QR code.<\/p>\n Is this Unitag-specific?<\/strong> No, it is the GS1 Digital Link standard, and that is the point: a conformant QR code stays readable by any system that speaks the standard. Unitag is certified by GS1 France on the GS1 Digital Link URI Standard structure and the QR Code symbol.<\/p>\n Create your first GS1 Digital Link QR code<\/p>\n Free trial, EU hosting, no fees per QR code.<\/p>\n Start a trial \u2192<\/a><\/p>\n<\/div>\n\nOne printed QR code, several destinations: how a scan “asks” for something<\/h2>\n
![\"The](\"https:\/\/www.unitag.io\/blog\/wp-content\/uploads\/2026\/08\/20260831_200100_LinkTypesTabEN.png\")
https:\/\/id.unitag.io\/01\/09506000134352?linkType=gs1:nutritionalInfo<\/code><\/pre>\n\n
The link types, family by family<\/h2>\n
![\"The](\"https:\/\/www.unitag.io\/blog\/wp-content\/uploads\/2026\/08\/20260831_200200_LinkTypeMenuEN.png\")
gs1:dpp<\/code> leads to the Digital Product Passport, the type customs and inspection systems will request. gs1:certificationInfo<\/code> carries product certifications, gs1:sustainabilityInfo<\/code> sustainability and recycling information, gs1:safetyInfo<\/code> safety information, gs1:recallStatus<\/code> the recall status (declared before any crisis, it exists on every pack the day it is needed), gs1:traceability<\/code> track-and-trace, gs1:epcis<\/code> EPCIS logistics events.<\/p>\ngs1:pip<\/code> is the product information page, the most common public destination. gs1:instructions<\/code> carries usage instructions.<\/p>\ngs1:nutritionalInfo<\/code> for nutrition, gs1:allergenInfo<\/code> for allergens, gs1:ingredientsInfo<\/code> for ingredients, gs1:recipeInfo<\/code> for recipes. For wine and spirits, the first three answer the EU e-labelling obligation (Regulation 2021\/2117) precisely.<\/p>\ngs1:epil<\/code> (electronic patient information leaflet), gs1:eifu<\/code> (electronic instructions for use) and gs1:smpc<\/code> (summary of product characteristics) are restricted to healthcare-sector accounts, in line with the sector\u2019s rules.<\/p>\ngs1:masterData<\/code> exposes product master data, gs1:verificationService<\/code> a verification service, gs1:jws<\/code> signed data. These are the types retailer and logistics systems request; consumers never see them.<\/p>\nAudience and languages: the extra precision<\/h2>\n
![\"The](\"\/blog\/wp-content\/uploads\/2026\/08\/20260831_190200_TargetAudienceMenuEN.png\")
What it is for, concretely<\/h2>\n
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gs1:dpp<\/code> becomes one more destination behind a QR code already printed, and gs1:recallStatus<\/code> exists before the crisis rather than after.<\/li>\n Frequently asked questions<\/h2>\n
?linkType=<\/code>). The vocabulary of types is defined by the GS1 Digital Link standard.<\/p>\nRead next<\/h2>\n