LinkedIn Cookie Table

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

Purpose: Advertising

Cookie Name Domain Purpose Expiration Provider
li_at .www.865103.tw 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
PLAY_SESSION www.865103.tw Used by some LinkedIn services to store session information 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 Session LinkedIn


?Security

Purpose: Advertising

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.865103.tw Used for saving the state of 2FA of a logged in user 2 years LinkedIn
fcookie linkedin.com To determine if a user is a person and not a bot Session LinkedIn
ccookie linkedin.com To remember if a user received a captcha challenge 20 minutes LinkedIn
JSESSIONID .www.865103.tw Used for CSRF protection Session LinkedIn
chp_token .www.865103.tw Used to denote whether the user has gone through 2FA 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 p.adsymptotic.com 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 p.adsymptotic.com Used by Cloudflare in the event servers are down, for showing a cached version of any requested web page 3 days Cloudflare
cfuid p.adsymptotic.com Used to detect potential malicious visitors to Cloudfare proxied sites 30 days Cloudflare
denial-client-ip www.865103.tw Used for anti-scraping and DOS prevention 5 seconds LinkedIn
denial-reason-code www.865103.tw Used for anti-scraping and DOS prevention 5 seconds LinkedIn
rtc www.865103.tw Used as part of anti-abuse processes on LinkedIn 120 seconds LinkedIn
trkInfo www.865103.tw Used as part of anti-abuse processes on LinkedIn 5 seconds LinkedIn
trkCode www.865103.tw Used as part of anti-abuse processes on LinkedIn 5 seconds LinkedIn
spectroscopyld www.865103.tw Used to catch malicious activity through browser extensions 7 days LinkedIn
fptctx2 .linkedin.com Used to prevent abuse in payment workflows for LinkedIn Session

Microsoft

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

Microsoft

 


Preferences/Features/Services

Purpose: Analytics and Research

Cookie Name Domain Purpose Expiration Provider
li_rm .www.865103.tw 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 behavioural advertising 10 years LinkedIn
ac_L linkedin.com Counts the number of times the account center banner 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 settings of guest recent history 10 years LinkedIn
li_cc www.865103.tw Used to ensure users phone number is inputted in China 1 week LinkedIn
all_u_b www.865103.tw 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 Session LinkedIn
uh www.865103.tw Used to set the user preference for the mobile web platform Session LinkedIn
pushPermInfo www.865103.tw Used to determine cool off for push notification prompts   365 days LinkedIn 
pushPermState www.865103.tw Used to determine push notification permission state  30 days   LinkedIn
G_AUTHUSER_H .www.865103.tw  Used by Google Single Sign On  Session   Google
G_ENABLED_IDPS .www.865103.tw  Used by Google Single Sign On  2 years   Google
g_state www.865103.tw  Stores the timestamp and dismiss count for Google's one tap prompt feature  180 days  Google 
lidc .linkedin.com  To optimize data center selection  24 hours   LinkedIn
integration_type www.865103.tw  Used to determine which integration traffic is coming from to render the profile namecard experience  30 days  LinkedIn 
lissc .linkedin.com   Used to ensure there is correct SameSite attribute for all cookies in that browser  365 days LinkedIn 
lissc1 www.865103.tw  Used to assess SameSite cookie attribute and study its impact on LinkedIn  30 days  LinkedIn 

lissc2

www.865103.tw  Used to assess SameSite cook attribute and study its impact on LinkedIn  30 days   LinkedIn

interstitial_page_reg_oauth_url

www.865103.tw  Used to identify if a user has signed up to LinkedIn through a third-party app, to provide the applicable onboarding flow  24 hours  LinkedIn 
wwepo .www.865103.tw  Used to ensure the preference of phone only members   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  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 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.865103.tw  Used by some LinkedIn services to facilitate the display of messages on page transitions   Session  LinkedIn
PLAY_LANG www.865103.tw  Used by some LinkedIn services to remember a user's language preference  Session   LinkedIn
visit www.865103.tw   To determine whether to take a user to the registration page or the login page 1 year   LinkedIn
redirectFromM2MInviteAccept www.865103.tw  Used to notify the user that an invite has been accepted  Session   LinkedIn
redirectFromM2MInviteSent www.865103.tw  Used to notify the user that an invite has been sent  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  365 days   LinkedIn
appName  www.865103.tw Used to identify the source as the LinkedIn Lite app to send the right service worker to the app Session   LinkedIn
appLang  www.865103.tw Used to set the right language on the LinkedIn Lite app Session   LinkedIn


Cookies LinkedIn drops on third party sites

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


Personalized Advertising

Purpose: Analytics and Research

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
dmp .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


Analytics and Research

Purpose: 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_US-[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
mbox .linkedin.com Used by Adobe Target to analyze the relevance of online content 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


?Functional

Purpose: Advertising

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


Updated: October 5, 2020