Cookies and data stored in browser storages

Name

Type

Description

meiro_user_id

cookie

UUID generated for each visitor with the longest possible expiration if not set differently on the ME instance.

meiro_user_id_js

cookie

Javascript backup of meiro_user_id.

meiro_inbound_user_ids

cookie

Array of all inbound user IDs obtained when the current user came from different websites with cross-domain tracking implemented.

meiroEventsActiveMinimizedBanner

SS

Data structure of currently minimized active Pop-Up banner (if any)

meiroEventsPageViewsCount

SS

Counter of page views used for web banners settings where you can define from which point web banners can start displaying.

meiroEventsUserId

LS

Backup of meiro_user_id.

meiroEventsInboundUserIds

LS

Backup of meiro_inbound_user_ids.

meiroEventsSessionId

LS

User’s session ID, renewable after 30 minutes.

meiroEventsSessionIdUsedTs

LS

Helper timestamp variable used for proper session ID refreshing

meiroEventsQueue

LS

Queue of failed requests to send events. SDK tries to repeatedly send them with each new request.

meiroEventsGaCidSync

LS

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

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.

meiroEventsOptimizelyDataSync

LS

Stores session ID for which it lastly synced/checked Optimizely data. If it’s different from the current session ID and the previously sent Optimizely data are also different, then the syncing event is initialized.

meiroEventsBannersImpressionCount

LS

Stores impression counts for each web banner, used for frequency cap limitations.

meiroEventsLastBannersImpressions

LS

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

Currently stores visitors' IP for IP address web banner condition evaluation.

meiroEventsHttpResponsesCache

LS

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

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).