How brands discount by email, read from the codes in real campaigns: the patterns they follow, how deep they cut, and how long a code runs.
Codes in the archive start in May 2026, so every figure here covers campaigns sent since then. 73% of codes with a confirmed offer are percent off rather than dollars off.
How we read these codes
A code is picked up only when an email names it as one ("use code", "promo code"), and it must carry a digit, which keeps ordinary words out.
An offer is shown only when something confirms it: a number in the code itself, or the subject line stating it.
A sale's "up to 50% off" is a ceiling, not what a code gives, so it never counts. Otherwise the offer reads "not confirmed" rather than a guess.
A code that looks generated for one person (random letters and digits) is shown as a unique per-subscriber code, never the code itself.
Everything comes from past campaigns, so any code may have expired.