Building a public coupon-quality crawler that fails closed

Coupon data has an awkward property: most defects look plausible. An expired offer can still have polished copy. A publisher instruction can look like shopper-facing terms. The same offer can appear on two localized pages with different text. A code can be real but inapplicable to a particular cart. At CouponX we needed a repeatable way to audit... Weiterlesen