LinkedIn Cookie Table

Last Updated: November 4, 2021

We use different types of cookies to collect and use data as part of our Services.

We use two types of cookies: persistent cookies and session cookies. A persistent cookie lasts beyond the current session and will stay on your browser until they expire or you delete them. Session cookies last only as long as the session (usually the current visit to a website or a browser session).  Third parties, such as our customers, partners and service providers may also use cookies in connection with our Services. Please take a look at our Cookie Policy if you’d like more information on how and why we and third parties use cookies. You can also find more information in our Privacy Policy, including information about how we process data collected through cookies.

These tables list some of the cookies that we and third parties place. They include information about the cookies that LinkedIn uses on third party sites including when LinkedIn’s Insight Tag is installed on our customers sites. The tables also provide information about the cookies that third parties may use to help us to provide our Services. 

Since the number and names of cookies may change, these tables may be updated from time to time to provide you with the latest information. The expiration dates for the cookies listed below generally apply on a rolling basis.


Authentication

Cookie Name Domain Purpose Expiration Provider
li_at .www.linkedin.com Used to authenticate Members and API clients 1 year LinkedIn
liap .linkedin.com Used by non-www.domains to denote the logged in status of a member 1 year LinkedIn
leadgen.api_session forms.linkedin.com Stores client ID for Leadgen applications Session LinkedIn
transaction_state linkedin.com Used to redirect users accessing LinkedIn through third party apps for authorization Session LinkedIn
lihc_auth_str .linkedin.com Used by LinkedIn HelpCenter Live Chat to store session information.  Session LinkedIn
lihc_auth_* .linkedin.com Used by LinkedIn HelpCenter Live Chat to store language and chat start timestamp. Example names of this cookie include lihc_auth_en, lihc_auth_es, depending on language preference. Session LinkedIn
sj_sessionid

training.talent.linkedin.com

training.marketing.linkedin.com

training.sales.linkedin.com

When visiting a page with tutorial functionality provided by Skilljar, this cookie maintains a logged-in state for the user across multiple pages. Skilljar tutorial functionality is only provided to users who explicitly consent to receive such functionality.  14 days Skilljar
cp_session help.linkedin.com This cookie is set to authenticate users into LinkedIn's instance of Oracle Service Cloud which is used by LinkedIn's Help Center.  Session Oracle
G_AUTHUSER_H .www.linkedin.com Used by Google Single Sign On to identify if a user is logged into Google on their browser.  Session Google
G_ENABLED_IDPS .www.linkedin.com Used by Google Single Sign On. 2 years Google
g_state .www.linkedin.com Stores the timestamp for the purpose of honoring the cool off period and dismiss count for Google's one tap prompt feature. 180 days Google


Security

Cookie Name Domain Purpose Expiration Service Provider
fid linkedin.com Used to track malicious activity on the site 7 days LinkedIn
bcookie linkedin.com Browser Identifier cookie to uniquely identify devices accessing LinkedIn to detect abuse on the platform 2 years LinkedIn
bscookie .www.linkedin.com Used for remembering that a logged in user is verified by two factor authentication.  2 years LinkedIn
fcookie linkedin.com Used for bot detection. 7 days LinkedIn
ccookie linkedin.com To remember if a user received a captcha challenge. 20 minutes LinkedIn
JSESSIONID .www.linkedin.com Used for Cross Site Request Forgery (CSRF) protection. Session LinkedIn
chp_token .www.linkedin.com Used to denote whether the user has gone through two factor authentication or solved a Captcha. Session LinkedIn
li_cu .linkedin.com Used to map a user to a captcha challenge page 15 minutes LinkedIn
cf_ob_info Multiple Cloudflare Proxied Domains Used by Cloudflare to track the request path and status through Cloudflare network to end servers for security purposes 3 days Cloudflare
cf_use_ob Multiple Cloudflare Proxied Domains Used by Cloudflare in the event servers are down, for showing a cached version of any requested web page 3 days Cloudflare
cfuid Multiple Cloudflare Proxied Domains Used to detect potential malicious visitors to Cloudfare proxied sites 30 days Cloudflare
__cfruid Multiple Cloudflare Proxied Domains Used by Cloudflare for rate limiting Session Cloudflare
__cf_bm Multiple Cloudflare Proxied Domains Bot detection provided by Cloudflare 30 minutes Cloudflare
denial-client-ip www.linkedin.com Stores user IP address for anti-scraping and DOS prevention 5 seconds LinkedIn
denial-reason-code www.linkedin.com Used for anti-scraping and DOS prevention 5 seconds LinkedIn
rtc www.linkedin.com Used as part of anti-abuse processes on LinkedIn 120 seconds LinkedIn
trkInfo www.linkedin.com Threat analysis and de-bugging used as part of anti-abuse processes on LinkedIn 5 seconds LinkedIn
trkCode www.linkedin.com Used as part of anti-abuse processes on LinkedIn 5 seconds LinkedIn
spectroscopyId www.linkedin.com Used to catch malicious activity through browser extensions Session LinkedIn
fptctx2 .linkedin.com Used to prevent abuse in payment workflows for LinkedIn Session

Microsoft

dfpfpt .linkedin.com Unique user identifier to prevent abuse in payment workflows for LinkedIn 2 years

Microsoft

 

li_referer .linkedin.com Used to detect bots. Cookie remembers the referring website before redirecting the user to captcha for authorization 15 minutes

LinkedIn

f_token .linkedin.com Used to detect bots for anti-scraping 3 minutes

LinkedIn

__ssid linkedin.com Used to prevent fraud and abuse in payment flows 10 years

SIFT


Preferences/Features/Services

Cookie Name Domain Purpose Expiration Provider
li_rm .www.linkedin.com Used as part of LinkedIn's Remember Me Feature and is set when a user clicks "Remember me" on their device to make logging in on that device easier 1 year LinkedIn
BizographicsOptOut .linkedin.com Used to determine whether a use has opted out of targeted advertising 10 years LinkedIn
ac_L linkedin.com Counts the number of times the account center banner, which is displayed to inform users with an incomplete profile how to complete their profile, was closed by a user to determine display logic 180 days LinkedIn
ac_LD linkedin.com Contains the date when the account center was displayed to a user to determine display logic 180 days LinkedIn
recent_history_status .linkedin.com Used to determine whether a user enabled or disabled the Guest Recent History Setting 10 years LinkedIn
all_u_b www.linkedin.com To know if a user has opted in to viewing LinkedIn on an unsupported browser 21 days LinkedIn
lang .linkedin.com Used to remember a user's language setting to ensure LinkedIn.com displays in the language selected by the user in their settings. Session LinkedIn
uh www.linkedin.com Used to set the user preference for the mobile web platform via a user's settings Session LinkedIn
pushPermInfo www.linkedin.com Used across multiple LinkedIn services to determine cool off for push notification prompts   365 days LinkedIn 
pushPermState www.linkedin.com Used across multiple LinkedIn services to determine the user's push notification permission preference  30 days   LinkedIn
lidc .linkedin.com  To facilitate data center selection  24 hours   LinkedIn
wwepo .www.linkedin.com  Used to ensure that useres who choose to sign up using phone only have that setting and preference respected  90 days  LinkedIn
sdsc linkedin.com  Signed data service context cookie used for database routing to ensure consistency across all databases when a change is made. Used to ensure that user-inputted content is immediately available to the submitting user upon submission. Session  LinkedIn 
li_gc .linkedin.com  Used to store consent of guests regarding the use of cookies for non-essential purposes  2 years  LinkedIn 
li_mc .linkedin.com  Used as a temporary cache to avoid database lookups for a member's consent for use of non-essential cookies and used for having consent information on the client side to enforce consent on the client side  2 years  LinkedIn 
PLAY_FLASH www.linkedin.com  Used by some LinkedIn services to facilitate the display of messages on page transitions . Users include notifying a user when a form is successfully submitted or fails , and to provide other similar notifications.  Session  LinkedIn
PLAY_LANG www.linkedin.com  Used by some LinkedIn services to remember a user's language preference  Session   LinkedIn
PLAY_SESSION www.linkedin.com Used by some LinkedIn services to store session information Session LinkedIn
visit www.linkedin.com   To determine whether to take a non-authenticated user to the registration page or the login page 1 year   LinkedIn
redirectFromM2MInviteAccept www.linkedin.com  Determines the appropriate profile display logic when a user accepts an invitation to connect on LinkedIn from a LinkedIn member via email.  Session   LinkedIn
redirectFromM2MInviteSent www.linkedin.com  Used to notify and provide the appropriate profile display logic when the user sends an invitation to connect on LinkedIn from a LinkedIn member via email. Session   LinkedIn
cookie.policy.banner.eu   Used to display cookie banner in LinkedIn Lite  365 days   LinkedIn
cookie.policy.banner.nl   Used to display cookie banner in LinkedIn Lite on the Netherlands site.  365 days   LinkedIn
appName  www.linkedin.com Used to identify the source as the LinkedIn Lite app to send the right service worker to the app Session   LinkedIn
appLang  www.linkedin.com Used to set the right language on the LinkedIn Lite app Session   LinkedIn
lls-integration www.linkedin.com Validates whitelisted partners for content integrations 30 days Linkedin
feed-sort www.linkedin.com Used to remember a member's preference how the feed should be sorted 1 day LinkedIn
abiRedirect .linkedin.com Enables import of address book during onboarding flow for users who choose to import their address book Session LinkedIn
timezone .linkedin.com Used to determine user's timezone 14 days LinkedIn
lil-lang www.linkedin.com Stores user's selected language setting for LinkedIn Learning Session LinkedIn
sj_ubid

training.talent.linkedin.com

training.marketing.linkedin.com

training.sales.linkedin.com

Used for debugging across multiple browsers when visiting a page with tutorial functionality provided by Skilljar 20 years Skilljar
li_alerts

.linkedin.com

Used to track impressions of LinkedIn alerts, such as the Cookie Banner and to implement cool off periods for display of alerts 1 year LinkedIn
li_theme

.linkedin.com

Remembers a user's display preference/theme setting 6 months LinkedIn
integration_type

www.linkedin.com

Used to determine which integration traffic is coming from to render the profile namecard experience 30 days LinkedIn


Cookies LinkedIn drops on third party sites

Cookie Name Domain Purpose Expiration Provider
UserMatchHistory linkedin.com LinkedIn Ads ID syncing 30 days LinkedIn
AnalyticsSyncHistory .linkedin.com Used to store information about the time a sync with the lms_analytics cookie took place for users in the Designated Countries 30 days LinkedIn
li_oatml .linkedin.com Used to identify LinkedIn Members off LinkedIn for advertising and analytics outside the Designated Countries and, for a limited time, advertising in the Designated Countries 30 days LinkedIn
lms_ads .linkedin.com Used to identify LinkedIn Members off LinkedIn in the Designated Countries for advertising 30 days LinkedIn
lms_analytics .linkedin.com Used to identify LinkedIn Members in the Designated Countries for analytics 30 days LinkedIn
li_fat_id Various, first party domain Member indirect identifier for Members for conversion tracking, retargeting, analytics 30 days LinkedIn
li_sugr .linkedin.com Used to make a probabilistic match of a user's identity outside the Designated Countries 90 days LinkedIn
U .adsymptotic.com Browser Identifier for users outside the Designated Countries 3 months LinkedIn
_guid linkedin.com Used to identify a LinkedIn Member for advertising through Google Ads 90 days LinkedIn
BizographicsOptOut .linkedin.com Determine opt-out status for 3rd party tracking 10 years LinkedIn
li_giant Various, first-party domain Indirect indentifier for groups of LinkedIn Members used for conversion tracking 7 days LinkedIn


Personalized Advertising

Cookie Name Domain Purpose Expiration Provider
UserMatchHistory linkedin.com LinkedIn Ads ID syncing 30 days LinkedIn
li_oatml .linkedin.com Used to identify LinkedIn Members off LinkedIn for advertising and analytics outside the Designated Countries and, for a limited time, advertising in the Designated Countries 30 days LinkedIn
lms_ads .linkedin.com Used to identify LinkedIn Members off LinkedIn in the Designated Countries for advertising 30 days LinkedIn
li_fat_id Various, first party domain Member indirect identifier for Members for conversion tracking, retargeting, analytics 30 days LinkedIn
li_sugr .linkedin.com Used to make a probabilistic match of a user's identity outside the Designated Countries 90 days LinkedIn
U .adsymptotic.com Browser Identifier for users outside the Designated Countries 3 months LinkedIn
_guid linkedin.com Used to identify a LinkedIn Member for advertising through Google ads 90 days LinkedIn
A3 .yahoo.com Ads targeting cookie for Yahoo 1 year Yahoo
anj .adxns.com Ads targeting cookie for AppNexus 3 months AppNexus
uuids .adxns.com Used by ad nexus analytics by AppNexus 3 months AppNexus 
ELOQUA .linkedin.com Used for tracking by ELOQUA 2 years  ELOQUA
ELQSTATUS .linkedin.com Used for tracking by ELOQUA 2 years   ELOQUA
dpm .dpm.demdex.net Sends events to Adobe Audience Manager 6 months  Adobe
dextp .demdex.net Records last time a data synchronization call was performed 6 months Adobe 
demdex .demdex.net Visitor identification 6 months  Adobe
dst .lnkd.demdex.net Logs when there is an error sending data to destination. Used as part of Adobe Audience Manager 6 months Adobe 
lnkd .lnkd.demdex.net Sends event to Adobe Audience Manager 6 months Adobe 
aam_uuid .linkedin.com / .business.linkedin.com Set for ID sync for Adobe Audience Manager 30 days  Adobe 

MUID

.bing.com Bing Tracking 1 year Microsoft

MR

.bat.bing.com Bing Tracking 6 months Microsoft 
MR2 .bat.bing.com Bing Tracking 6 months Microsoft
IDE .doubleclick.com Ads targeting cookie for DoubleClick 2 years  Google
fr .facebook.com Ads targeting cookie for Facebook 3 months Facebook 
personalization_id .twitter.com Ads targeting cookie for Twitter 2 years  Twitter
GUC yahoo.com Yahoo Conversion Tracking 5 months Yahoo
B .yahoo.com Yahoo Conversion Tracking 1 year Yahoo
test_cookie .doubleclick.net Test for cookie setting permissions in user's browser 1 day Google
_gcl_au .linkedin.com  Used through Google Analytics to understand user interaction with the site and advertising 3 months  Google
_gcl_aw .linkedin.com  Used through Google Ads to understand user interaction with the site and advertising 3 months  Google
_gcl_dc .linkedin.com Used through Google Campaign Manager and DV 360 to understand user interaction with the site and advertising 3 months Google
brwsr LinkedIn Tracking Domain  Affiliate Marketing Cookie for LinkedIn 2 years LinkedIn
ABSELB LinkedIn Tracking Domain Load Balancer Cookie for affiliate marketing 2 years LinkedIn
IRLD LinkedIn Tracking Domain Affiliate Marketing Cookie for LinkedIn 2 years  LinkedIn
_gac_UA-62256447-1 .linkedin.com Google Analytics cookie 3 months Google
ASPSESSIONID itack.ilead.it Used for tracking conversion during member sign up process Session Ad Pepper
SERVERID itrack.ilead.it Load balancer cookie for Ad Pepper conversion tracking Session Ad Pepper
tuuid creative-serving.com Stores randomly generated number for recurring visitors for Ad Pepper conversation tracking 13 months Ad Pepper
tuuid_lu creative-serving.com Stores randomly generated number for recurring visitors for Ad Pepper conversation tracking 12 months Ad Pepper
c creative-serving.com Stores a timestamp for conversion tracking 12 months Ad Pepper
fl_inst creative-serving.com Identifies whether a browser accepts flash 1 week Ad Pepper
pvc* creative-serving.com Used for Advertising Engagement tracking through Ad Pepper 13 months Ad Pepper
pcc* creative-serving.com Used for Advertising Engagement tracking through Ad Pepper 13 months Ad Pepper
trc creative-serving.com Used for Advertising Engagement tracking through Ad Pepper 13 months Ad Pepper
ad2 creative-serving.com Used for  tracking ad viewability and brand safety through Ad Pepper 13 months Ad Pepper
barometric[cuid] trkn.us Used for Veritone/Barometric Podcast Conversion tracking on both linkedin.com (product) and microsites (business.linkedin.com) 1 year Claritas
tluid .3lift.com Used to uniquely identify users across webpages for advertising purposes 90 days TripleLift


Analytics and Research

Cookie Name Domain Purpose Expiration Provider
lms_analytics .linkedin.com Used to identify LinkedIn Members in the Designated Countries for analytics 30 days LinkedIn
AnalyticsSyncHistory .linkedin.com Used to store information about the time a sync took place with the lms_analytics cookie 30 days LinkedIn
queryString Any LinkedIn microsite This cookie is used to persist marketing tracking parameters 30 days LinkedIn
SID .linkedin.com Used to determine what a visitor is doing before they convert on a LinkedIn microsite Session LinkedIn
VID .linkedin.com ID associated with a visitor to a LinkedIn microsite which is used to determine conversions for lead gen purposes 1 year LinkedIn
_ga .linkedin.com Google Analytics cookie 2 years Google
_gat .linkedin.com Google Analytics cookie Session Google
_gid .linkedin.com Google Analytics cookie 1 day Google
_gac_UA-[Property ID] .linkedin.com Google Analytics cookie 90 days Google
UID .scorecardresearch.com Cookie used for market and user research 720 days Scorecard Research 
UIDR .scorecardresearch.com Cookie used for market and user research 720 days Scorecard Research

AMCVS_14215E3D5995

C57C0A495C55%40Adob

eOrg

.linkedin.com Indicates the start of a session for Adobe Experience Cloud Session  Adobe

AMCV_14215E3D5995C5

7C0A495C55%40AdobeO

rg

.linkedin.com Unique Identifier for Adobe Experience Cloud 180 days  Adobe
s_cc .linkedin.com Used to determine if cookies are enabled for Adobe Analytics Session  Adobe
s_sq .linkedin.com Used to store information about the previous link that was clicked on by the user by Adobe Analytics Session Adobe 
s_vi .omtrdc.net Unique identifier for Adobe Analytics 180 days Adobe 
s_fid .linkedin.com Unique identifier for Adobe Analytics 180 days  Adobe 

ki_r

.qualaroo.com Stores the initial page referrer when available for targeting purposes 5 years Qualaroo

ki_s

.qualaroo.com Stores the current state of any survey the user has viewed or interacted with 5 years Qualaroo 
ki_t .qualaroo.com Stores the survey timestamps and view counts 5 years Qualaroo
ki_u .qualaroo.com Stores a random UID to associate with survey responses 5 years  Qualaroo
gpv_pn .linkedin.com Used to retain and fetch previous page visited in Adobe Analytics 6 months Adobe
s_plt .linkedin.com Tracks the time that the previous page took to load Session Adobe
s_tslv .linkedin.com Used to retain and fetch time since last visit in Adobe Analytics 6 months Adobe
s_ppv .linkedin.com Used by Adobe Analytics to retain and fetch what percentage of a page was viewed Session Adobe
s_pltp .linkedin.com Provides page name value (URL) for use by Adobe Analytics Session Adobe
s_ips .linkedin.com Tracks percent of page viewed 2 years Adobe
s_tp .linkedin.com Tracks percent of page viewed 2 years Adobe


Functional

Cookie Name Domain Purpose Expiration Provider
recent_history .linkedin.com Used to remember URLs visited by the guest to show the pages back where they left off 90 days LinkedIn
liveagent_chatted .linkedin.com Used to enable live chat functionality 10 years Salesforce
liveagent_oref .linkedin.com Used to enable live chat functionality 10 years Salesforce
liveagent_ptid .linkedin.com Used to enable live chat functionality 10 years Salesforce
liveagent_sid .linkedin.com Used to enable live chat functionality Session Salesforce
liveagent_vc .linkedin.com Used to enable live chat functionality 10 years Salesforce
NID .google.com Used by Google to store user preferences 6 months Google
sharebox-suggestion www.linkedin.com Displays a banner that provides help text to first time users of the Elevate share box Session LinkedIn
at_check .linkedin.com Used to determine if a visitor has accepted the use of cookies for Adobe Target Session Adobe
mbox .linkedin.com Used by Adobe Target to analyze the relevance of online content 180 days Adobe
li_cc www.linkedin.com Used to ensure a user's phone number is inputted in China 1 week LinkedIn
lss_bundle_viewer .linkedin.com Stores consent when a user agrees to view a Smartlinks link 1 month LinkedIn
interstitial_page_reg_oauth_url www.linkedin.com Stores the referring page to ensure the Authentication screen displays correctly 1 day LinkedIn