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4.5.2 Key figures
The following two figures contain the most important key figures of web controlling. These are separated in SEO and SEM. With the aid of these it is possible to organise information and put it into a target/actual comparison.
The success of SEO is often measured in ranks and clicks. The other information is needed to measure the behaviour in order to continue optimising the web site.
Figure 13: SEO key figures
Key figure |
Definition |
Hits |
Number of accessed elements within a web site |
Page impressions |
Number of accessed pages within one session |
Visits |
Number of accessed pages of one user within one session |
Stickiness |
Time a user spends on one session |
Visitors |
Amount of web site visitors |
Unique visitors |
Amount of unique visitors |
Registered users |
Users which are identified by putting their data in a form |
Rank |
Position of the web site in the organic listing of a SERP |
Clicks |
Amount of clicks in the organic listing on a web site |
Source: Wannenwetsch and Nicolai, 2004, p.58
The success of SEA is measured by cost per X. The X stands for various units explained above. The second key figure is the conversion rate.
Figure 14: SEA key figures
Key Figure |
Definition |
Ad impressions |
Amount of impressions of a specific advert |
Ad clicks |
Amount of clicks on an advert |
CTR |
Click through rate. Percentage of clicks in relation to an advert. |
Leads |
Amount of qualified customer contacts caused by an advert |
Sales |
Amount of sales caused by an advert |
CPC |
Cost per click |
CR |
Conversion rate. Percentage of a users’ action in relation to Ad clicks. |
CPL |
Cost per lead. |
CPO |
Cost per order. |
CPA |
Cost per action. |
ROI |
Return on investment. Relation of benefits to the costs of an advert. |
Source: Bishopinck and Ceyp, 2008, p.264
Online marketers often see ROI in the context of a whole campaign and not only in one advert.