QR Code Dog Tags: How They Work and Are They Worth It
What a finder sees when they scan the code, how you get alerted, and why a QR tag works best alongside a microchip rather than instead of one.
If you’re choosing an ID tag for your dog, you’ve probably seen QR code dog tags alongside the usual engraved ones and wondered what the code actually does. The short version: scanning it with a phone opens your dog’s record on a database, so anyone who finds your dog can reach you using the details you’ve chosen to share. It’s worth having alongside the microchip, not instead of it.
What happens when someone scans a QR code dog tag
A QR code dog tag links to your pet’s record on a database. When someone finds your dog, they point their phone camera at the code on the tag, and it opens that record in their browser.
Any smartphone camera can scan the code, and it takes the finder straight to your pet’s information on Pet Database, so there’s no special equipment needed on their side.
On a Smart Pet Tag, the finder sees your contact information, plus anything else you’ve chosen to show. You can read a fuller comparison against engraved tags in our guide to QR code pet tags vs traditional tags.
What you get as the owner
When your Smart Pet Tag arrives, you claim it and attach it to your pet on your Pet Database account. One pet can have several Smart Pet Tags linked to it, so if your dog wears more than one collar, a change to your account details updates every tag automatically.
Every time the tag is scanned, you’re notified by SMS and email. Pet Database calls these notifications Safety Pings.
You also control what the finder sees. If you move house or change your number, you update the record once and the tag shows the new details from then on. There’s nothing to re-engrave and no new tag to buy.
What a QR tag can and can't do that a microchip does
A QR tag and a microchip work in different ways, and your dog needs both. In England, Wales and Scotland, by law your dog must wear your name and address on the collar or on a tag attached to it when out in public, whether or not they’re microchipped. A QR tag counts towards that only if it also carries your name and address, so check what yours shows.
The practical difference is how they’re read. Anyone with a phone camera can read a QR code; a phone can’t read a pet microchip. So if the tag comes off with the collar, a vet or warden’s scanner still finds the chip, and across the UK our dog microchipping page sets out the legal requirements.
Neither device tracks your pet. A microchip holds only a number, and your details live on the database record linked to it, so it’s the record that needs keeping current, never the chip. A QR pet tag holds a link. If you want live location on a map, that’s a separate GPS collar device, and there’s more on the difference in our guide to GPS trackers vs microchips.
Is a QR code dog tag worth it
A QR dog tag gives a finder your details and notifies you when it’s scanned, so you know straight away that someone’s picked up your dog and is trying to reach you. You can update the contact details without replacing the tag. A Smart Pet Tag costs £14.99 plus postage.
Why the tag only works if your record is current
A QR tag shows the finder whatever is in your record, so the record has to be right. If the phone number on it is old, the finder can’t reach you.
In a Censuswide survey for Pet Database in September 2026, owners said they’d last checked their pet’s microchip details an average of 15 weeks ago, with almost a third never checking at all. It’s worth checking whenever anything in your life changes, and our step-by-step guide walks through updating a dog’s microchip details.
If a QR tag suits your dog, you can order a Smart Pet Tag to wear alongside the microchip. Keep your Pet Database record current, and the chip and the tag will point to the same up-to-date details.
