# Tracking script querystring vars

**URL:** <https://forum.mautic.org/t/tracking-script-querystring-vars/21857>\
**Category:** Product Support\
**Created:** [December 1, 2021, 9:21pm UTC](https://forum.mautic.org/t/tracking-script-querystring-vars/21857 "2021-12-01T21:21:42Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![aglyons](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.mautic.org/aglyons/32/2825_2.png) [@aglyons](https://forum.mautic.org/u/aglyons)\
**Post date:** [December 1, 2021, 9:21pm UTC](https://forum.mautic.org/t/tracking-script-querystring-vars/21857/1 "2021-12-01T21:21:42Z")

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**Your software**  
My Mautic version is: 4.0.2  
My PHP version is: 7.4

Do the standard tracking scripts grab all querystring vars from the URL and expose them for use in custom event tracking?

While I see UTM codes are grabbed and can be used, I am looking to grab the ‘gclid’ VAR from the URL as Google ADs assigns this to clicks to landing pages.