As more and more marketers make online advertising a part of their
media mix, they are also finding a unique world of Web advertising
terms.
CNN Interactive's "Internet Q&A" column is a regular series about the
Internet that aims to explain basic terms in a simple, user-friendly
way, and offers useful tips on how you can take advantage of this
exciting medium. If you have any questions for this column, write to
cnni.asia@turner.com
Q: What's the difference between a Click, an Impression and a Hit?
A: Click: A click is when a visitor interacts with an advertisement, by
actually clicking on it so that the visitor is headed toward the
advertiser's destination, although it does not measure whether the
visitor waits to get there or not.
Impression: An impression is the count of a delivered basic advertising
unit. Impressions are how most Web advertising is sold and the cost is
quoted in terms of the cost per thousand impressions (CPM).
Hit: A hit is the sending of a single file (HTMLfile, an
image, an audio file, or other file type). The number of hits from a
site is not a good indication of actual number of visitors, but for the
website space provider, however, hits can indicate traggic flow.
Source: http://www.whatis.com/adterms/htm.
