WebCookies logo Web Cookies Scanner

All-in-one free web application security tool. Web application vulnerability and privacy scanner with support for HTTP cookies, Flash, HTML5 localStorage, sessionStorage, CANVAS, Supercookies, Evercookies. Includes a free SSL/TLS, HTML and HTTP vulnerability scanner and URL malware scanner.

Cookie: __cfduid

This cookie name is being set on 349,771 websites and 73,837 distinct domains and we have seen it bein used in the following objects:

  • 349,771 HTTP cookies

Cookie origin and purpose

  • CloudFlare cookie (confidence 0.5) » Reference...
  • CloudFlare functional cookie set in browsers visiting CloudFlare's customers' websites with the purpose of identifying malicious visitors and reducing the chance of blocking legitimate users (confidence 1.0) » Reference...
  • Generic CloudFlare functional cookie (confidence 0.75) » Reference...

Cookie classification

  • unknown (confidence 0.5)
  • tracking (confidence 0.5)

Sample values

Sample value: 























                
            
                
                    Sample value:


d00013c1da9ba5c788a53f2cbb2acb9891499444259













    











                
            
                
                    Sample value:


d000141d6d57af9ce03d7049fc7369f8e1533208733













    











                
            
        

    


    

        


            
Domains targeted by __cfduid cookie


            
This list includes both third-party domains set by tracking and adversing companies, as well
                as the first-party domains of the websites that use this cookie name.


            

            
        

    


    

        


            
Websites setting __cfduid cookie


            

            

        

    




    

     

    
        

            

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