The document presents insights on ad viewability derived from a study by Google, revealing that a significant portion (56.1%) of impressions are not seen, with an average viewability rate of 50.2% across publishers. It emphasizes the impact of page position and ad size on viewability, indicating that vertical units and placements above the fold generally perform better. Additionally, it provides recommendations for advertisers and publishers on optimizing ad placements and using viewability data to enhance ROI and inventory value.

1. The Importance
of Being Seen
November 2014
Viewability Insights for Digital
Marketers and Publishers

2. thinkwithgoogle.com
WHAT WE WANTED TO KNOW
We conducted research using our Active View technology to
learn about the current state of viewable impressions on the web.
There is increased interest in viewability among brand
advertisers and publishers now that the Media Rating Council
has lifted the viewable transaction advisory. Brand advertisers
want to ensure that their ads can be seen and are seeking
enhanced ROI. Publishers want to enhance site viewability
and to use viewable impressions as a currency to do so.
Here we highlight the trends we discovered in analyzing the
research data to help advertisers and publishers formulate
their viewability strategy.
2

3. thinkwithgoogle.com
WHAT WE DID
3
Google conducted a study of our display advertising platforms,
including Google and DoubleClick, to better understand ad
viewability. According to the Media Rating Council and IAB
standards, a viewable impression occurs when 50% of an ad’s
pixels are on screen for one second. The data used in this study
are based on display ads in browsers (desktop and mobile) and
does not include mobile in-app or video apps.

4. thinkwithgoogle.com
WHAT WE FOUNDWHAT WE FOUND
State of publisher viewability
A small number of publishers are serving most of the non-viewable impressions.
56.1% of all impressions we measured are not seen, but the average publisher viewability is 50.2%.
Page position matters...
The most viewable position is right above the fold, not at the top of the page.
...So does ad size
The most viewable ad sizes are vertical units.
Above the fold ≠ always viewable
Page position isn’t always the best indicator of viewability. Not all above-the-fold impressions
are viewable, while many below-the-fold impressions are.
Viewability varies across industries
While it ranges across content verticals, and industries, content that holds a user’s attention
has the highest viewability.
4

5. State of Publisher Viewability

6. thinkwithgoogle.com 6
VIEWABILITY DISTRIBUTION ACROSS DOMAINS
A small number of publishers are serving most of the
non-viewable impressions.
Source: Google and DoubleClick display advertising platforms data, October 2014.
% VIEWABLE
%OFPUBLISHERDOMAINS

7. thinkwithgoogle.com 7
of impressions are
not seen, but the
average publisher
viewability is 50.2%.
56.1%

8. Page Position Matters…

9. thinkwithgoogle.com 9Source: Google and DoubleClick display advertising platforms data, July 2014.
Average viewability by vertical position (728 x 90)
0%
20%
40%
60%
80%
100%
0 0.5 1 1.5 2 2.5
VIEWABILITY
RELATIVE BROWSER PAGE POSITION
Note: Horizontal axis denotes position of top edge of ad impression.
Highest viewability at page fold
Steep viewability
drop-off after
page fold

10. thinkwithgoogle.com 10Source: Google and DoubleClick display advertising platforms data, July 2014.
Average viewability by vertical position (300 x 250)
0%
20%
40%
60%
80%
100%
0 0.5 1 1.5 2 2.5
VIEWABILITY
RELATIVE BROWSER PAGE POSITION
Note: Horizontal axis denotes position of top edge of ad impression.
Viewability high
throughout top fold
Viewability drop-off
is seen at page fold

11. thinkwithgoogle.com 11Source: Google and DoubleClick display advertising platforms data, July 2014.
Average viewability by vertical position (160 x 600)
0%
20%
40%
60%
80%
100%
0 0.5 1 1.5 2 2.5
VIEWABILITY
RELATIVE BROWSER PAGE POSITION
Note: Horizontal axis denotes position of top edge of ad impression.
Viewability high
throughout top fold
Viewability drop-off *least*
steep compared to other ad sizes
Viewability remains > 40%
for longest page length

12. thinkwithgoogle.com 12Source: Google and DoubleClick display advertising platforms data, July 2014.
Average viewability by vertical position (468 x 60)
0%
20%
40%
60%
80%
100%
0 0.5 1 1.5 2 2.5
VIEWABILITY
RELATIVE BROWSER PAGE POSITION
Note: Horizontal axis denotes position of top edge of ad impression.
Highest viewability at page fold
Steep viewability
drop-off after
page fold

13. thinkwithgoogle.com 13Source: Google and DoubleClick display advertising platforms data, July 2014.
Average viewability by vertical position (320 x 50)
0%
20%
40%
60%
80%
100%
0 0.5 1 1.5 2 2.5
VIEWABILITY
RELATIVE BROWSER PAGE POSITION
Note: Horizontal axis denotes position of top edge of ad impression.
The highest viewability point
right before the page fold
The drop-off in viewability
right after page fold

14. … So Does Ad Size

15. thinkwithgoogle.com 15
VIEWABILITY RATES BY AD SIZE
55.6% 54.9%
53.7%
52.5%
51.4%
48.8% 48.2% 48.0% 47.2% 46.3% 46.2%
45.2% 45.0%
44.0%
41.0%
30%
35%
40%
45%
50%
55%
60%
65%
70%
%VIEWABLE
The most viewable ad sizes are vertical units.
Source: Google and DoubleClick display advertising platforms data, July 2014.
AD UNIT SIZE

16. Above the Fold ≠
Always Viewable

17. thinkwithgoogle.com 17
Above the fold is not always viewable while below
the fold often is.
0%
5%
10%
15%
20%
25%
%OFPUBLISHERDOMAINS
% VIEWABLE
0%
5%
10%
15%
20%
25%
30%
35%
%OFPUBLISHERDOMAINS
% VIEWABLE
Median viewability for
above-the-fold ad units
68%
ATF VIEWABILITY DISTRIBUTION
Source: Google and DoubleClick display advertising platforms data, July 2014.
Median viewability for
below-the-fold ad units
40%
BTF VIEWABILITY DISTRIBUTION

18. Viewability Varies
Across Industries

19. thinkwithgoogle.com 19
Viewability varies significantly across content verticals,
with the highest viewability belonging to sites
associated with more captive engagement.
Source: Google and DoubleClick display advertising platforms data, July 2014.
43.6%
44.0%
44.6%
44.8%
46.4%
46.6%
47.1%
47.2%
47.8%
48.0%
48.4%
48.9%
51.9%
People & Society
Health
Pets & Animals
Hobbies & Leisure
Internet & Telecom
Science
Computers & Electronics
Business & Industrial
Jobs & Education
Arts & Entertainment
Games
Online Communities
Reference
38.7%
38.8%
39.6%
40.2%
40.8%
41.5%
41.9%
42.0%
42.2%
42.3%
42.5%
42.6%
43.6%
Real Estate
News
Food & Drink
Sports
Shopping
Books & Literature
Autos & Vehicles
World Localities
Law & Government
Beauty & Fitness
Home & Garden
Travel
Finance

20. WHAT THIS MEANS FOR ADVERTISERS
thinkwithgoogle.com 20
Viewability data enables advertisers to identify both high- and low-
value inventory and then shift budgets and targets accordingly to
maximize reach and ROI.
By understanding trends about what inventory has the highest
viewability, advertisers can better formulate their media strategies.

21. WHAT THIS MEANS FOR ADVERTISERS
thinkwithgoogle.com 21
Viewability varies significantly by page position and ad size.
In general, advertisers should consider the relationship between page position and ad size while
planning creative and targeting.
Page position doesn’t tell the whole story.
Ultimately, advertisers should target based on viewability measurements to achieve the best results.
On average, publishers have 50% viewability rates, but some publishers
have much lower viewability.
Advertisers seeking viewable impressions should steer towards high viewability sites.
Consider targeting sites with more engaging content to achieve
higher viewability rates.
Vertical ad units are the most likely to be seen by users.

22. WHAT THIS MEANS FOR PUBLISHERS
thinkwithgoogle.com 22
Viewability data can help publishers increase the long-term value of
their display inventory.
By understanding the factors that affect viewability, publishers can
enhance their sites to maximize viewable impressions.

23. WHAT THIS MEANS FOR PUBLISHERS
thinkwithgoogle.com 23
Publishers should consider which ad sizes are most effective at
different page positions when making ad placement/layout decisions.
Viewability can enable publishers to better identify and monetize
valuable below-the-fold inventory.
To achieve average viewability, publishers should aim for above
50% viewability.

24. thinkwithgoogle.com
WHAT WE DID
24
Google conducted a study of our display advertising platforms,
including Google and DoubleClick, to better understand ad
viewability. According to the Media Rating Council and IAB
standard, a viewable impression occurs when 50% of an ad’s
pixels are on screen for one second. The data used in this
study is based on display ads in browsers (desktop and mobile)
and does not include mobile in-app and video ads. The data
was collected in two months: October 2014 for the average
viewability of impressions and domains, and July 2014 for
the rest of our findings.

25. thinkwithgoogle.com
WHAT WE DID
25
Minimum measurable counts:
Domains with less than 1,000 measurable
ads over the period of a week were
removed. This filtering ensures sufficient
data points for each domain to be
confident in the statistics and removes
unmeasurable domains. Unmeasurable
domains were removed to better represent
true viewability numbers instead of
presenting numbers artificially lowered by
non-measurable sites.
Minimum measurable counts
(vertical position graphs):
The vertical position graphs use a
minimum measurable count of
ten ads over one day due to the
data sets’ small granularity.

26. thinkwithgoogle.com
WHAT WE DID
26
Minimum received rate:
Active View ads send data pings
regardless of whether they are viewed.
Domains where we received pings from
fewer than 50% of enabled ads are
removed. Again, this is done to eliminate
issues caused by non-measurable sites.
With this filtering in place, we created
a data set with over one week of data
from impressions on DoubleClick for
Publishers, DoubleClick Ad Exchange
and the Google Display Network.