System Design · Netflix · Hard
System Design · Software Engineer · High Frequency An ad frequency-capping platform restricts the number of times a user may receive a particular advertisement, or an ad category, over a defined period. Unlike an ordinary rate limiter, this operates in an ad-delivery setting with independent read and write flows: determining whether an ad can participate in bidding does not mean it will ultimately be displayed, so impression events arrive later through asynchronous tracking.…
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