Dealspotr, the leading crowdsourced savings platform, conducted a study on popular coupon websites to better understand why so many coupon codes online are expired. The results were stunning: among popular and mid-tier coupon sites and browser extensions, only 35% of discount codes listed actually provided a working discount. "Maintaining a truly accurate database of coupon codes across tens of thousands of retailers is major challenge requiring significant resources," says Dealspotr's CEO Michael Quoc. Across stores, an estimated 10,000 promo codes are launched each day which need to be tested, verified, and edited. Brands login to Dealspotr everyday to share exclusive discount codes only available to the Dealspotr community.