Do Query Strings strip SEO value?

[Marketing_Today]

Hopefully a quick Yes No answer to this one but if I site links to my site as follows: www.mysite.com/?gclid=CNuG0Kasfy7oCFfMbtAodZg4AIw

Is there value in that link still?

[GPainter]

If it is a follow link yes, sub fact to this if you've got canonical tags correctly installed on your site the link is really only going to "www.mysite.com" and the query string is essentially ignored. The main issues is follow vs no follow more than the url

[Martijn_Scheijbeler]

Yes there is! But the specific query string/parameter GCLID is mostly ignored by the search engines as it's a parameter that is often used by search engines to identify users. For example, every link from Google Adwords will contain this parameter.