Codes somebody actually tried before you did.

No. GraphEffect is free and there is no account to create. We earn a commission from merchants when a purchase follows a click from here, which is what funds the testing. Your price is the same either way.

It is the day someone here last took that code through the merchant's checkout and confirmed the discount applied. It is not the day the page was edited. A code with no date has not been tested, and we label it that way rather than implying otherwise.

Because deleting them quietly would hide the fact that we removed them. 0 codes sit in our expired lists. Keeping them visible also tells you what a merchant's discounts usually look like, which is useful when you are deciding whether to wait for the next one.

Use the "Did it work?" control on that coupon and pick No. That pushes it into our recheck queue immediately. Codes that collect enough failure reports are retired automatically. Reader reports are the fastest way dead codes come down.

Most commonly the code applies to a subset of the order — the first seat on a seat-based plan, full-price items only, or the base plan and not add-ons. Where the merchant's checkout reveals a restriction like that, we record it under the coupon.

Mostly reader demand and search interest. Having an affiliate programme makes a merchant easier for us to test repeatedly, so those tend to get deeper coverage — we would rather say that plainly than pretend coverage is neutral.