| Category (Administrative, Behavior, MVT) | Cookie Description | Persistence* | Purpose | Name | Comments |
| Administrative | Browser Acceptance | Session | Does the browser accept session cookies? | m | |
| Administrative | Browser Acceptance | 1 year | Does the browser accept persistent cookies? | n | |
| Behavior | Campaign view frequency | 1 year | Third party pixel frequency | tppf | |
| Administrative | Session | 30 min | Visitor has been inactive for 30 minutes and no longer considered to be in session (used when calculating how great an impact recent behavior should have on content shown) | s | |
| Administrative | Region ID | 1 year | Region the visitor is in (regions are defined by the site) | ric | Not dropped on a visitor unless the site has regional product pricing and availability |
| Administration | RichReach Opt Out | 10 years | Current browser has opted out of seeing “RichReach” (retargeting placements) | prooc | |
| Administration | Cookie Opt Out | 10 years | Current browser has opted out of behavior, MVT, and other administrative cookies | coo | |
| Administration | User GUID | 1 year | Tracks a visitor across sessions | uc | Renewable |
| Behavior | Recent Search | Session | Recent search terms entered through this browser on the merchant partner’s site | sthc | |
| Behavior | Do not use | 1 day | Purchased products that should not be used for recommendations | mrdu | Not dropped on a visitor unless they take specific actions within MyRecs |
| Behavior | RichPromo Engagement | 1 year | Views and clicks on RichPromo campaign placements that have been set to not show after the current browser has clicked or viewed them X times | rp2er | Not dropped on a visitor unless the site is using RichPromo and its engagement rules |
| Behavior | Ad View Frequency | 1 year | Number of times a visitor has seen a RichAd | avf | Not dropped on a visitor unless the site is using RichAds |
| Behavior | Added to Registry | 1 year | Products have been added to a registry (baby or wedding) | atrhc | Not dropped on a visitor unless the site is using Registry |
| Behavior | Category Views | 1 year | Category pages a browser has recently viewed | Cv | |
| Behavior | Added to Cart | 1 year | Items that have been recently added to cart | ca, pendprch | |
| Behavior | Search Terms | 1 year | Terms browser has searched | psthc, uhs | |
| Behavior | Items Purchased | 1 year | Items that have been recently purchased | p | |
| Behavior | Items Viewed | 1 year | Items that have been recently viewed | pv | |
| MVT | Treatment | 1 year | Current browser is in the “a” or “b” side of an a/b test | utidc | Not dropped on a visitor unless the site is running an A/B test |
| MVT | Multivariate Test Treatment | 1 year | Used to determine which treatment (a vs. b vs. n) of a multivariate test the current browser is in | mvtid | Not dropped on a visitor unless the site is running an multivariate test |
