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What is the difference between impressions and viewable impressions?

Visitor ✭ ✭ ✭
# 1
Visitor ✭ ✭ ✭

I've been asked to compare impressions to viewable impressions. 

After searching online for the difference between them, I am still confused. 

 

Could you clarify the difference between the two? 

Also, what would be a good proportion to use with viewable impression to convey performance?

1 Expert replyverified_user

What is the difference between impressions and viewable impressions?

Eva Rising Star
Rising Star
# 2
Eva Rising Star
Rising Star

Hi there,

There are a couple of differences you need to know about impressions and viewable impressions.
By definition, an ad is counted as "viewable" when 50 percent of your ad shows on screen for one second or longer for display ads and two seconds or longer for video ads. You can select Viewable CPM as a bid strategy when you choose CPM (cost per thousand views ) bidding for your "Display Network only" campaign. (https://support.google.com/adwords/answer/3499086?hl=en)
In this case, you will be charged per every 1000 impressions that were counted as viewable.

If you are advertising on Search Network only, you should look at impressions metric. "An impression is counted each time your ad is shown on a search result page or any other site on the Google Network."(https://support.google.com/adwords/answer/6320?hl=en).

In other words, if you are not using Viewable CPM strategy, the main metric for you to evaluate the number of times your ads were shown, will be "impressions."

Please let me know if you have any more concerns regarding the difference between impressions and viewable impressions.

Regards,
Eva

 

 

Regards,
Eva