|
Cookie Name |
Description |
|
_cb |
This cookie stores a visitor's unique identifier for Chartbeat tracking on your site. |
| _chartbeat2 |
This cookie stores timing information about when this visitor has visited your site before. This enables us to distinguish between new, returning, and loyal visitors. |
| _v__chartbeat3 |
This is used by our video tracking system. It is a video-specific visitor identifier. |
| _cb_svref |
This cookie stores the original referrer for this site visitor -- for example, this will store the fact that a visitor arrived to your site via Twitter, past the first page view, so that when a visitor recirculates to a different article page, we still know that they originally arrived on your site via Twitter. This cookie expires after 30 minutes but the timer is reset if a visitor visits a new page on your site before the cookie expires. |
| _chartbeat4 |
This is a short-lived cookie that carries leftover engagement data from one page to the next, to make sure that we can send it to our servers successfully from the next page. This ensures that we capture as much engagement data as possible. |
| _chartbeat5 |
This is a short-lived cookie that carries click information from one page to the next. This enables us to track which links on a page were clicked on to display to editors in real-time. |
| _t_tests |
This is used by our headline testing system, primarily to ensure that a given visitor to your website sees a consistent headline across multiple pageviews. For example, if a visitor sees headline B for a given test on your homepage, and they read an article and then return to your homepage, they will continue to see headline B. |
| _cb_ls |
This cookie is from a legacy data migration process (Chartbeat's code changed how it's storing data and we're leaving an indicator for ourselves that this visitor has been migrated to the new data storage format). It should only ever contain the value "1" if it exists. |
| _v__cb_cp |
This is used by our video tracking system. It briefly stores leftover data from a previous video view session as a visitor navigates from one page to the next. This cookie has a 1 hour duration. You can find this on our privacy page. |
| _superfly_lockout |
Key of short-lived storage value placed on client domain to indicate that this user should not send pings because the last ping failed. (A ping is a colloquial term for a Javascript beacon.) |
| _v__superfly_lockout |
is the same thing as _superfly_lockout, but this cookie is set by our video pinger |