Cookies and data stored in browser storages
Following is the list of cookies and local/session storage data items stored by ME in users’ browsers.
Expiration is following:
|
Name |
Storage |
Type |
Description |
|
meiro_user_id |
cookie |
analytical |
UUID generated for each visitor with the longest possible expiration if not set differently on the ME instance. |
|
meiro_user_id_js |
cookie |
analytical |
Javascript backup of meiro_user_id. |
|
meiro_session_id_js |
cookie |
analytical |
JavaScript backup of the session ID stored in local storage, serving as a duplicate for SDK usage across subdomains. |
|
meiro_session_id_used_ts_js
|
cookie |
analytical |
The timestamp for the last usage of the session ID allows proper refreshing and continuity of session tracking across subdomains. |
|
meiro_inbound_user_ids |
cookie |
analytical |
Array of all inbound user IDs obtained when the current user came from different websites with cross-domain tracking implemented. |
|
meiro_synced_fb_cid
|
cookie |
performance |
Last synced FB client id value to prevent sending the syncing event on subdomains. |
|
meiro_synced_ga_cid
|
cookie |
performance |
Last synced GA client id value to prevent sending the syncing event on subdomains. |
|
meiroEventsActiveMinimizedBanner |
SS |
functional |
Data structure of currently minimized active Pop-Up banner (if any) |
|
meiroEventsPageViewsCount |
SS |
functional |
Counter of page views used for web banners settings where you can define from which point web banners can start displaying. |
|
meiroEventsUserId |
LS |
analytical |
Backup of meiro_user_id. |
|
meiroEventsInboundUserIds |
LS |
analytical |
Backup of meiro_inbound_user_ids. |
|
meiroEventsSessionId |
LS |
analytical |
User’s session ID, renewable after 30 minutes. Read more here. |
|
meiroEventsSessionIdUsedTs |
LS |
analytical |
Helper timestamp variable used for proper session ID refreshing |
|
meiroEventsQueue |
LS |
performance |
Queue of failed requests to send events. SDK tries to repeatedly send them with each new request. |
|
meiroEventsGaCidSync |
LS |
performance |
Stores session ID for which it lastly synced/checked _ga cookie value. If it’s different from the current session ID and the previously sent _ga cookie value is also different, then the syncing event is initialized. |
|
meiroEventsFbCidSync |
LS |
performance |
Stores session ID for which it lastly synced/checked _fb cookie value. If it’s different from the current session ID and the previously sent _fb cookie value is also different, then the syncing event is initialized. |
|
meiroEventsBannersImpressionCounts
|
LS |
performance |
Stores impression counts for each web banner, used for frequency cap limitations. |
|
meiroEventsLastBannersImpressions |
LS |
performance |
Stores timestamps of the last displayed pop-up banner and is used to enforce the global frequency limit, excluding banners marked with 'Ignore global frequency cap'. |
|
meiroEventsStoredUserData |
LS |
functional |
Currently stores visitors' IP for IP address web banner condition evaluation. |
|
meiroEventsHttpResponsesCache |
LS |
functional |
Cache of all HTTP responses made during web banner conditions evaluation. It is used for performance optimizations and is also accessible for web banner developers to get personalized data about visitors. |
|
meiroEventsUserIdentification |
LS |
functional |
Stores information if a visitor is identified within CDP. If not, every Audience API call is reverted for a specified timestamp because it would always end up with a 404 response (performance optimization). |
|
meiroEventsDetectedDomains
|
LS |
performance |
Helper variable storing results for detecting domains based on hostnames. |
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