php - How can Google Analytic Cookies appear without using Analytics? -


i have never used google analytics on web site.

i have implemented online booking system wrote using javascript , php.

my php code includes "trace" logs data , events related application. there separate trace log each user session. trace includes list of cookies , values available.

i have discovered single instance cookies named utma, utmb, utmz, ld893_bl , utmc present in user session. found utm.. cookies belong google analytics. (still no idea ld903_bl cookie is.)

my question this:

since web page includes javascript, , code not set these cookies, how can cookies exist domain?

mah

addendum trace:

user agent: mozilla/5.0 (compatible; msie 10.0; windows nt 6.1; wow64; trident/6.0)

--- cookies ---

mahavailabilitydate : d20130615z-0500p01

mahmode : v01m0400a0000h137394118225684859002

__utma : 208741518.729017776.1373940236.1373940236.1373940236.1

__utmb : 208741518.0.10.1373940236

__utmz : 208741518.1373940236.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)

ld893_bl : 1373940485

__utmc : 208741518

--- end cookies ---

the mah prefix cookies mine. others mystery. theoretically, can not there.


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