想请问一下，Nuffnang也是这样计算的吗？

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Have autotranslated your post, so I hope I have a clear enough idea of what you’re asking, but will have to answer in English, as I don’t know Chinese

1. An impression is only counted if the Advertlets ad is loaded. So if your page has a lot of other items, sometimes people might not load all the code on the blog (including Advertlets) before closing the blog, so if the ad banner cannot be loaded, you cannot earn from displaying it, of course.

2. I noticed that both ad placements & ad quantities for both of those blogs are different. Its not just about the same banner ad, but also about the number of ads that you have placed. Each blog also has a different earning rate, depending on their past performance, unique visitor quality, visitor geolocation & history. So it doesn’t mean that high traffic = high earnings all the time, it also depends on whether the audience is suited to the advertiser.

3. We were doing some upgrades, let us know if you ever see the message again.

Hope this answers your questions, cheers!

Josh Lim
Advertlets.com