Click identifier may refer to several web analytics mechanisms:
DoubleClick Click Identifier (dclid), used by Google Marketing Platform Facebook Click Identifier (fbclid) used by Meta Platforms in advertising and social media analytics Google Click Identifier (gclid, gclsrc, and ), used by Google Ads and Google Marketing Platform LinkedIn Click Identifier (li_fat_id), used by LinkedIn Ads Microsoft Click Identifier (msclkid), used by Microsoft Advertising Seznam Click Identifier (sznclid), used by Seznam / Sklik TikTok Click Identifier (ttclid), used by TikTok Ads Twitter Click Identifier (twclid), used by X Ads Yahoo Click Identifier (yclid), used by Yahoo! Japan Ads Yandex Click Identifier (yclid), used by Yandex Direct advertising Zanox click identifier (zanpid), used by Awin
See also Query string UTM parameters Social media analytics