Privacy Research Papers

Web Leakage Research by the Office of the Privacy Commissioner of Canada - Test Results*

Office of the Privacy Commissioner of Canada

September 2012

Related link: Infographic: How does web leakage happen?


CATEGORY A: Test results which raised significant privacy concerns
Site & Industry Sector Third-party recipients Personal data received by each third party
Email address Name User-name Postal code Location Other
Organization 1
Retailer
Online marketing & web analytics     X X    
Load balancing/content delivery; marketing     X      
Organization 2
Classified ads site
Online advertising marketplace X          
Web analytics X          
Load balancing/content delivery X          
Advertising and ad bidding company X          
Load balancing/content delivery; marketing X          
Organization 3
Media
Load balancing/content delivery; marketing X   X X    
Online marketing & web analytics X   X X    
Content provider (news) X   X X    
Organization 4
Shopping site
Load balancing/content delivery X   X      
Website performance monitoring/management     X   City  
Load balancing/content delivery; marketing X   X   City  
Web analytics X   X   City  
Online advertising     X      
Web analytics X   X   City  
Local search and advertising service     X      
Digital marketing     X   City  
Load balancing/content delivery     X      
Social network X          
Load balancing/content delivery X          
Organization 5
Advertising and search site
Load balancing/content delivery; marketing     X   City Search string**
Load balancing/content delivery     X   City Search string
Web analytics     X   City  
Digital advertising (automotive)     X   City  
Load balancing/content delivery     X   City Search string
Website performance monitoring/management     X   City  
Online surveys     X      
Online video and video statistics reporting     X      
URL shortening service     X      
Digital marketing     X      
Social network         City Search string
Provider of online marketing data         City Search string
Organization 6
Media
Analytics and marketing X Full X   City  
Analytics and marketing; online community management services X Full X   City  
Online marketing & web analytics X Full X   City  
Load balancing/content delivery; marketing X Full X   City  
CATEGORY B: Test results which raised questions about website practices
Site & Industry Sector Third-party recipients Personal data received by each third party
Email address Name User-name Postal code Location Other
Organization 7
Retail
Load balancing/content delivery; marketing company       X    
E-flyer provider       X    
Organization 8
Retail
Online marketing & web analytics company   First        
E-flyer provider       X    
Load balancing/content delivery; marketing       X    
Organization 9
Retailer
Load balancing/content delivery; marketing X First X      
Online marketing & web analytics   First        
Online social marketing   First        
E-flyer provider       X    
Organization 10
Retailer
E-flyer provider       X    
Technical support (to allow for interactive chat)       X    
Web analytics; web-based mapping service       X    
E-flyer provider       X    
Load balancing/content delivery       X    
Organization 11
Media
Load balancing/content delivery; marketing X Full X   City  

* This chart includes the results of tests conducted during July and August 2012.

** Search string refers to search terms the user entered before landing on a particular page.