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Whether I log into Facebook or Twitter, I'll be bombarded with cookies of the such names as:

__utma
__utmb
__utmc
__utmv

What are their functions ? Is there a standard that governs how these are used on the serverside ?

Whether I log into Facebook or Twitter, I'll be bombarded with cookies of the such names as:

__utma
__utmb
__utmc
__utmv

What are their functions ? Is there a standard that governs how these are used on the serverside ?

  • javascript
  • http
  • cookies
Share Improve this question asked Nov 12, 2009 at 7:47 Jacques René MesrineJacques René Mesrine 47.8k27 gold badges70 silver badges106 bronze badges 1
  • 1 I voted to close this question because it is not a programming question and it is off-topic on Stack Overflow. Non-programming questions about your website should be asked on Webmasters. In the future, please ask questions like this there. – Adriaan Commented May 3, 2022 at 12:52
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2 Answers 2

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These are cookies generally associated with Google Analytics.

See this info from Google itself.

BTW, the UTM prefix originally stood for Urchin Tracking Module, whereby Urchin Software Corp is a company acquired by Google in 2005 and which product was used as the basis for Google's initial offering in the Web Site Analytics market.

These are cookies that come from Google Analytics. I couldn't immediately find the reference in Facebook's page source, but Twitter has it, and I've seen it plenty of times before in my own websites that use Google Analytics.

Here is an overview of the cookies Analytics uses.

本文标签： javascriptIs there a standard governing the utmautmz etc cookiesStack Overflow

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