Questions about the setup

Thank you. Following die Cookies in the browser:
Name    Value
4c2031216dcb1457817161cd47aefc45    1b0accc60494e9fa685c559c1152de2a
MyDomain.com/     lA0JkEpbcTdkHFca
e5b8b877197416a4197a9eccf740b522    57e419a5b615fb96b388feff82322690
087b553740480b972088477ec48bfc21    5a679717e3f244e8cfbf7b111fc033ea
db02de1b48da63daa3823a2ecd4b2175    ee9dce71bc1a9ad922d7f41f0cd1f3b6
29035c95758e196e3b8d927d003c1645    203a4726b1ce5b2d528b5a2da59682cd
f63a90cd7fb4d0cee51c5e7eaa548996    bfe689f55366001b8cb548983361fb08
a9be9cbfe199b5fee6949618933fc833    ef38c42fb08a33086cb4c08731c5add2

One of these is recognized as a Quantcast. The question is: Why? However, Quantcast is not installed.

unfortunately without access to the website I can not investigate further ...

I fully understand.