What is CPV?
Cost Per View (CPV) is the average price an advertiser pays each time someone views a video ad, calculated as total spend divided by counted views. The catch is that 'a view' is defined differently on every platform: YouTube skippable in-stream historically counts a view at 30 seconds (or the full ad if shorter) or on an interaction, while TikTok and many programmatic buys count one as early as 2 or 6 seconds. Because of that, CPV figures are only comparable within the same platform and view definition, never across them.
CPV is the standard cost metric for view-optimized and upper-funnel video campaigns, where the goal is cheap, broad attention rather than an immediate click or sale. The headline number is almost meaningless without its view definition attached. A $0.02 CPV against a 2-second view and a $0.04 CPV against a 30-second view can mean the cheaper one is actually buying far less real attention per dollar. That is the core honesty problem with CPV: a low CPV looks efficient but can hide low-quality, barely-watched impressions, so it should always be read next to view-through rate and downstream action, not in isolation. CPV is most useful for awareness goals, for comparing two creatives on the same platform under identical settings, and as an early read on whether a hook is cheap to get in front of people. It is the wrong primary metric for direct-response ecom, where CPA, CTR, and ROAS decide whether spend is working. A practical pattern is to use CPV and view-through rate together to find creative that earns cheap, deep attention, then judge that same creative on conversion metrics before scaling. Note also that lower-funnel video (a 6-second bumper versus a 30-second TrueView ad) and audience competition both move CPV, so changes in the number do not always mean the creative got better or worse.
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