| Name | Description |
|---|
| _hjSessionUser_{site_id} | - Set when a user first lands on a page.
- Persists the Hotjar User ID which is unique to that site.
- Ensures data from subsequent visits to the same site are attributed to the same user ID.
- 365 days duration.
- JSON data type.
|
| _hjid | - Set when a user first lands on a page.
- Persists the Hotjar User ID which is unique to that site.
- Ensures data from subsequent visits to the same site are attributed to the same user ID.
- 365 days duration.
- UUID data type.
|
| _hjFirstSeen | - Identifies a new user’s first session.
- Used by Recording filters to identify new user sessions.
- Session duration.
- Boolean true/false data type.
|
| _hjUserAttributesHash | - User Attributes sent through the Hotjar Identify API are cached for the duration of the session.
- Enables us to know when an attribute has changed and needs to be updated.
- Session duration.
- Hash data type.
|
| _hjCachedUserAttributes | - Stores User Attributes sent through the Hotjar Identify API, whenever the user is not in the sample.
- Collected attributes will only be saved to Hotjar servers if the user interacts with a Hotjar Feedback tool.
- Cookie used regardless of whether a Feedback tool is present.
- Session duration.
- JSON data type.
|
| _hjViewportId | - Stores user viewport details such as size and dimensions.
- Session duration.
- UUID data type.
|
| _hjSession_{site_id} | - Holds current session data.
- Ensures subsequent requests in the session window are attributed to the same session.
- 30 minutes duration.
- JSON data type.
|
| _hjSessionTooLarge | - Causes Hotjar to stop collecting data if a session becomes too large.
- Determined automatically by a signal from the WebSocket server if the session size exceeds the limit.
- Session duration.
- Boolean true/false data type.
|
| _hjSessionRejected | - If present, set to '1' for the duration of a user's session, when Hotjar has rejected the session from connecting to our WebSocket due to server overload.
- Applied in extremely rare situations to prevent severe performance issues.
- Session duration.
- Boolean true/false data type.
|
| _hjSessionResumed | - Set when a session/recording is reconnected to Hotjar servers after a break in connection.
- Session duration.
- Boolean true/false data type.
|
| _hjLocalStorageTest | - Checks if the Hotjar Tracking Code can use local storage.
If it can, a value of 1 is set. - Data stored in_hjLocalStorageTest has no expiration time, but it is deleted almost immediately after it is created.
- Under 100ms duration.
- Boolean true/false data type.
|
| _hjIncludedInPageviewSample | - Set to determine if a user is included in the data sampling defined by your site's pageview limit.
- 30 minutes duration.
- Boolean true/false data type.
|
| _hjIncludedInSessionSample | - Set to determine if a user is included in the data sampling defined by your site's daily session limit.
- 30 minutes duration.
- Boolean true/false data type.
|
| _hjAbsoluteSessionInProgress | - Used to detect the first pageview session of a user.
- 30 minutes duration.
- Boolean true/false data type.
|
| _hjTLDTest | - We try to store the _hjTLDTest cookie for different URL substring alternatives until it fails.
- Enables us to try to determine the most generic cookie path to use, instead of page hostname.
- It means that cookies can be shared across subdomains (where applicable).
- After this check, the cookie is removed.
- Session duration.
- Boolean true/false data type.
|
| _hjClosedSurveyInvites | - Set when a user interacts with a Link Survey invitation modal.
- Ensures the same invite does not reappear if it has already been shown.
- 365 days duration.
- Boolean true/false data type.
|
| _hjDonePolls | - Set when a user completes an on-site Survey.
- Ensures the same Survey does not reappear if it has already been filled in.
- 365 days duration.
- Boolean true/false data type.
|
| _hjMinimizedPolls | - Set when a user minimizes an on-site Survey.
- Ensures that the Survey stays minimized when the user navigates through your site.
- 365 days duration.
- Boolean true/false data type.
|
| _hjShownFeedbackMessage | - Set when a user minimizes or completes a Feedback widget.
- Ensures the Feedback widget will load as minimized if the user navigates to another page where it is set to show.
- 365 days duration.
- Boolean true/false data type.
|
