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| Name | Purpose | Lifetime | Type | Provider |
|---|
|
_ga
|
Used to distinguish users.
|
2
years
|
HTML
|
Google
|
|
_gat
|
Used to throttle request rate.
|
1
day
|
HTML
|
Google
|
|
_gid
|
Used to distinguish users.
|
1
day
|
HTML
|
Google
|
|
_gcl_au
|
Used by Google AdSense to experiment with advertisement efficiency.
|
3
months
|
HTML
|
Google
|
|
AMP_TOKEN
|
Contains a token that can be used to retrieve a Client ID from AMP Client ID service. Other possible values indicate opt-out, request in progress or an error retrieving a Client ID from AMP Client ID service.
|
1
year
|
HTML
|
Google
|
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