The main name and phone details should be recognisable without holding the tag directly under your eyes.
A tag only works when a stranger can read it quickly.
Dog tags take daily knocks from collars, leads, bowls, rain and muddy walks. A monthly check takes less than a minute and helps make sure the important details can still be read when they are needed.
Updated 2 August 2026One worn or ambiguous phone-number digit can make the whole contact line unusable.
Replace a tag when the hole, ring or surrounding metal is badly worn, cracked or distorted.
The 30-second readability test
Remove loose dirt, hold the tag in normal indoor light and read it from roughly arm’s length. Ask another person to read the owner details and phone number without prompting. If they hesitate over a letter or digit, the engraving is no longer doing its job reliably.
- Read the tag in ordinary light, not only under a bright torch.
- Check both the front and the optional engraved back.
- Confirm the phone number against the number saved in your phone.
- Look for digits that can be confused, such as 3 and 8 or 1 and 7.
Look beyond the engraving
A readable tag can still need replacing if the attachment point is failing. Check the split ring, the hole in the tag and the edge around it for thinning, sharp burrs, cracks or stretching. The tag should hang freely without catching on the collar hardware.
When to replace the tag
Replace it when any essential owner detail is difficult to read, the phone number has changed, the address is no longer current, or the attachment area is damaged. Do not wait for every line to disappear before ordering a new one.
- An important letter or number is unclear.
- The engraving is visible only at a particular angle.
- The tag has deep scratches across the contact details.
- The ring or attachment hole is close to failing.
- Your owner, address or phone details have changed.
Make the replacement easier to read
Keep the wording short, use the phone number most likely to be answered and move extra details to the reverse rather than shrinking the front text. The live DogTag.ie preview warns when the chosen wording needs to be shortened.
Simple replacement engraving examples
Use the front for the detail a finder needs first and keep every line easy to scan. A clear two-line front can show the dog’s name or a short message on line one and the main mobile number on line two. Put the owner’s name and address on the reverse when the chosen tag supports back engraving. All examples below use fictional placeholder details.
- Front example: PET NAME / 08X XXX XXXX
- Front example: I’M CHIPPED / 08X XXX XXXX
- Reverse example: ALEX SAMPLE / SAMPLE COUNTY
- Avoid long sentences, decorative symbols and multiple phone numbers on the same line.
Good to know before you order.
How often should I check a dog tag?
A quick monthly check is sensible, with an extra check after the tag has taken a hard knock or the collar hardware has been changed.
Should I replace a scratched dog tag?
Light cosmetic marks are not necessarily a problem. Replace the tag when scratches cross important details, make a letter or digit ambiguous, or weaken the attachment area.
What should I put on a replacement dog tag?
Keep the front concise with a dog name or short message and the main phone number. Use reverse engraving for the owner’s name and address where space allows, and check the complete wording against current Irish identification requirements.
Is a readable phone number enough?
A phone number is extremely useful, but Irish regulations specify the owner’s name and address. Keep all essential identification current and readable.