"Cashback portals" refer to websites or platforms that allow users to earn a percentage of their money back when making online purchases through specific links or by using their services. Full definition
While the value is still capped at 1.5 cent per point, you can get a bot more value by stacking credit card rewards and possible cashback portals. (dannydealguru.com)
Most online travel agents, or OTAs, pass along a portion of their commission on hotel reservations in the form of a rewards program like Expedia Rewards, or through cashback portals like TopCashBack. (freequentflyerbook.com)