Case StudiesO2 Case study

O2 Case study

Increase of the Brand’s Online Visibility and CTR

Prominent mobile services provider boosts its customer conversion rate.

O2 logotype
Arrow symbol
Online Services
Woman using smartphone


Click-Through Rate


Banners Displayed


About the client

O2 is one of Slovakia’s biggest and most prominent mobile service providers. Originally known as Telefónica, O2 began in Slovakia with commercial services on 2 February, 2007, with about 600,000 pre-registered users and 400,000 Slovaks actively using the O2 service. The operator now has 1,800,000 active SIM cards. Owned by PPF, the company is a subsidiary of O2 Czech Republic.

What they say about us

“In O2 Slovakia we are focusing not only on customers who are making their purchases online but also on those who are looking for information about mobile products on the Internet, finalizing their purchases online. For both of these groups the vast spectrum of information about plans and possibilities is important. RTB House retargeting campaigns were able to deliver on this.”

Anna Olvecká

Online Strategist, B2B Group - performance agency representing O2 Slovakia


The challenge

O2 wanted to increase brand visibility among their targetgroup, hence the company decided to focus not only on those users who were highly likely to convert and come over to O2, but also on those who were only visiting the website and not necessarily considering a purchase.


The solution

The retargeting campaign, implemented by RTB House, was designed to increase web traffic while maintaining the conversion rate. What did we do? First, we analyzed and targeted users based on their potential to make a purchase. Then, we divided them into 3 segments: visitors, users who added products to the shopping cart and users that have already actually made a purchase. The last part was the of various banners sets and advanced retargeting strategies based on those segments.


The result

• Thanks to our advanced retargeting campaign, O2 reached 0.35% CTR. We displayed 5.5 million banners every month, effectively redirected users to the O2 website, increased traffic and boosted their customer conversion rate. • Each user segment was targeted individually, using three special sets of banners. • As a result, our client´s budget was utilized effectively and the best possible outcome for the campaign was attained.


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