This cookie name is being set on 18,970 websites and 1 distinct domains and we have seen it bein used in the following objects:

18,970 HTTP cookies

Cookie origin and purpose

Rubicon Project cookie used for tracking advertising campaigns and collect anonymized user behavior statistics. (confidence 1.0) » Reference...

Cookie classification

unknown (confidence 0.3)
tracking (confidence 0.3)
marketing (confidence 0.3)

Sample values

Sample value:

00c95853-b922-4400-bc79-6451706c0434

This seems to be a UUID (GUID), version: 4

Length: 36 bytes (288 bits)
Information entropy: 3.52 bits (average bits per symbol)
Information content: 126.73 bits

Sample value:

01005ae9-0298-4000-9f6b-b5659eab8189

This seems to be a UUID (GUID), version: 4

Length: 36 bytes (288 bits)
Information entropy: 3.46 bits (average bits per symbol)
Information content: 124.59 bits

Sample value:

019358b0-0470-4700-9cc9-59a6d20993d0

This seems to be a UUID (GUID), version: 4

Length: 36 bytes (288 bits)
Information entropy: 3.52 bits (average bits per symbol)
Information content: 126.61 bits

Domains targeted by `put_1512` 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.

rubiconproject.com

Web Cookies Scanner

Cookie: `put_1512`

Cookie origin and purpose

Cookie classification

Sample values

Domains targeted by `put_1512` cookie

Websites setting `put_1512` cookie

Web Cookies Scanner

Cookie: put_1512

Cookie origin and purpose

Cookie classification

Sample values

Domains targeted by put_1512 cookie

Websites setting put_1512 cookie

Cookie: `put_1512`

Domains targeted by `put_1512` cookie

Websites setting `put_1512` cookie