Cookies on ScienceDirect

As explained in our privacy policy, sciencedirect.com and Linkinghub.elsevier.com collect information through the use of "cookies" or similar technologies. Cookies are widely used in order to make websites work, or work more efficiently, as well as to provide information to the owners of the site. You can control cookies through your browser's settings and other tools. However, if you block certain cookies, you may not be able to register, log in to, access certain parts of or make full use of ScienceDirect.

The information below explains the main cookies set by sciencedirect.com.

SD_REMOTEACCESS For users who set up remote access, this cookie maintains the account information to be displayed in a popup message whenever the user accesses ScienceDirect from outside your organization’s IP range.
SD_REMOTEACCESS_GL This cookie is created when a user registers on ScienceDirect. It then supersedes the SD_REMOTEACCESS cookie whenever the user logs in remotely with their username/password.
SD_INFO Remembers a user whenever they log in by selecting the “remember me” option on ScienceDirect.
SD_ORCH Remembers a user’s preferred organization if they have access to ScienceDirect via multiple organizations.
MIAMISESSION This cookie contains the user’s session identification (ID).
MIAMIAUTH Contains the user’s authentication token.
EUID This is a unique ID for each user who is accessing ScienceDirect.
RERUN_COOKIE A user is presented the option to rerun a previous search query when coming to ScienceDirect via a Google Search on their next visit. If the user chooses to rerun the search, this cookie is used to identify articles that were accessed after the rerun search.
USER_STATE_COOKIE Used to store the “state information” such as search chunk size, sort order, etc.
SD_ART_LINK_STATE Used for Search Engine Crawler redirection.
SD_REDEEM Used for the bulk ID registration process.
acw This cookie is used for single sign on functionality.
BROWSER_SUPPORTS_COOKIES Used to verify if cookies are enabled or disabled in a user’s browser.
PROP_RET_URL Used to track parameters from inward gateway links.
TARGET_URL Used to direct an OpenAthens user after log in.
DEFAULT_SESSION_SUBJECT Retains the subject selected for a user’s session.
SD_HOME_PAGE_COOKIE Used for Search Engine crawler functionality.
ArtAccState Tracks the state when propagating from ScienceDirect to other Elsevier products and then back to ScienceDirect.
FEDERATION_COOKIE Used for OpenAthens login.
shibsession_sciencedirect Used for SHIBBOLETH login.
SD_ANON_CART Used to keep track of articles in an anonymous user’s shopping cart on the Elsevier Store.
optimizelyEndUserId Used for statistical analysis of website changes and new feature engagement
optimizelyBuckets Used for statistical analysis of website changes and new feature engagement
optimizelySegments Used for statistical analysis of website changes and new feature engagement
optimizelyRedirect Used for statistical analysis of website changes and new feature engagement
optimizelyPendingLogEvents Used for statistical analysis of website changes and new feature engagement
optimizelyCheck Used for statistical analysis of website changes and new feature engagement
ANONRA_COOKIE Stores anonymous remote access information.
sd_scs Used to maintain user's session

Elsevier’s LinkingHub powers the Article Locator functionality used on ScienceDirect, as well as on other full-text solutions from Elsevier. It uses one cookie:

IHUBPreferences[x] This cookie automatically redirects a user to a full-text article on their preferred Elsevier site.

Option to decline use of cookies

You can prevent your browser from accepting certain cookies, have the browser require your consent before a new cookie is placed in your browser, or block cookies altogether by selecting the appropriate settings on your browser's privacy preferences menu. To avoid receiving cookies on the browser of your mobile device, you will need to refer to its user manual.