Dog training glossary
Proofing
Quick answer
Systematically testing and strengthening a known behavior across new locations, distractions, and distances.
Written by the TailorPup team, updated September 2026. See our editorial approach.
What it means
A behavior that only works in a quiet kitchen isn't actually reliable, proofing is the deliberate process of practicing it across the three Ds (distance, duration, distraction) one variable at a time, so it holds up wherever it's actually needed. Skipping proofing is one of the most common reasons owners feel like their dog "knows" a cue but won't do it outside the house.
A real example
After a dog reliably sits in the living room, its owner practices the same cue in the backyard, then on a quiet street, then near a park, gradually raising the difficulty.
Common mistake
Increasing more than one "D" at once, asking for a long stay, far away, next to a distraction, before any single variable has been solidly proofed on its own.
Related terms
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