click-through rate (CTR), Ad Click Rate
CTR, or click-through rate, is the rate at which visitors click an advertisement, usually calculated as a percentage of ad impressions. The current industry standard CTR for 468x60 banner ads is about 0.25%. Highest CTRs are usually generated using fake "message waiting" or javascript warning ads, which often have little or no relevance to their target site. Ads of this kind can generate CTRs up to 11% or more, but, due to their nuisance value, can be detrimental to the hosting site.
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