Meta, LinkedIn and OpenAI measure advertising activity and help connect website visits with ads.
Meta Pixel
Meta Pixel receives page views when Marketing is selected, to measure advertising and associate website activity with ads. This can include page addresses, browser and network information and advertising identifiers.
The pixel can use _fbp to recognise a browser and _fbc to retain an advertising click reference when a relevant Meta click identifier is present. Their standard cookie lifetime is 90 days. Meta may also access cookies on its own domains, depending on your browser and Meta account settings.
The Meta script can also use multiFbc in local storage on the website origin to retain recent advertising click references. It has no browser-enforced expiry; the script filters older references when updating the list. Clearing website data removes the stored value.
Meta Cookies Policy
LinkedIn Insight Tag
LinkedIn Insight Tag measures website visits and advertising activity when Marketing is selected. LinkedIn can receive page addresses, referrer information, timestamps, browser and device information, IP addresses and LinkedIn identifiers, and use these for campaign reporting and audience matching.
LinkedIn lists li_fat_id for first party attribution for 30 days. Its own domain cookies can include li_sugr for identity matching for 90 days, UserMatchHistory, AnalyticsSyncHistory, lms_ads and lms_analytics for advertising or measurement for 30 days, bcookie and bscookie for browser identification or security for one year, lidc for routing for 24 hours, li_gc and li_mc for consent state for six months, and lang and JSESSIONID for the session. The subset used depends on the service, browser and account state; LinkedIn’s cookie table explains the purposes and other possible cookies.
LinkedIn Cookie Table
OpenAI Pixel
OpenAI Pixel loads after Marketing is selected to associate website activity with ChatGPT advertising. It can process advertising references, the website origin and technical browser and network information. Our website integration does not send a completed signup event from a button click.
OpenAI uses the first party cookie __oppref for the oppref advertising reference for 30 days after writing it, and __obref for a randomly generated browser reference for 365 days after creation. Capturing a non-empty oppref parameter resets its 30-day period; simply reading either cookie does not extend its lifetime.
OpenAI Measurement Pixel
OpenAI Privacy Policy
Campaign information and signup links
intramanager:campaign-attribution:v1 is session storage provided by IntraManager. With Analytics or Marketing selected, it remembers the latest valid campaign in the current tab session. It contains only utm_source, utm_medium, utm_campaign, utm_content, utm_term and utm_id. Review previews use an isolated key suffix.
Without an optional category, the website does not retain this campaign snapshot or read it for attribution. Valid UTM values in the current page URL can still accompany a signup link to the IntraManager signup /start page without being saved by the website. Without those URL values, no previous campaign is added.
Signup links also include the button identity, source page, language and requested action. This describes where the request came from; a button click is not confirmation that an account was created. Session storage normally ends with the tab session; browser session restoration can preserve it. Withdrawing both optional categories removes the website campaign snapshot.
