Cookies

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Dreamwidth sets cookies in visitors' browsers. This is a list of the cookies that are set, why they are set, and what they do.

This is a work in progress.

Domain Cookie Name Cookie Contents What/Why
.dreamwidth.org BMLschemepref name of preferred sitescheme

(e.g. "tropo-red")

to allow choice of sitescheme while logged out
.dreamwidth.org langpref name of preferred language

(e.g. "en")

[obsolete] set by BML::set_language
.dreamwidth.org ljloggedin combination of userid & sessionid see LJ::Session->loggedin_cookie_string
.dreamwidth.org ljuniq persistent unique ID associated with device/browser see LJ/UniqCookie.pm
.dreamwidth.org no_mobile set to opt out of mobile view see DW/Setting/MobileView.pm
.www.dreamwidth.org ljmastersession combination of userid, sessionid, & auth see LJ::Session->master_cookie_string
<username>.dreamwidth.org ljdomsess.<username> info for session on given user's subdomain see LJ::Session->domain_cookie
.dreamwidth.org __cfduid hex string Probably CloudFlare
.dreamwidth.org __utma from Google Analytics more info
.dreamwidth.org __utmz from Google Analytics more info
<username>.dreamwidth.org __utma from Google Analytics more info
<username>.dreamwidth.org __utmz from Google Analytics more info

Viewing preferences are saved both in the settings and in cookies, and while logged in, the logged-in settings win. (From [info]Fu in #dreamwidth_dev 11 Oct 2011)