I’ve noticed recently that some Google AdWords ad’s automatically add a gclid parameter to the destination URL.
The reason for this to help provide Google Analytics tracking reports, this is set by default but can be disabled by deselecting the Destination URL Auto-tagging option in your account preferences. For more information please view the gclid auto-tagging page from the Google AdWords Help Centre.
“The parameter used in auto-tagging is called “gclid” and will show up in your landing page URL when a user arrives at your site from your ad. For example, if your site is www.mysite.co.uk, when a user clicks on your ad it will appear in the address bar as:
www.mysite.co.uk/?gclid=123xyz”
Tags: Google AdWords, PPC, Google Analytics
Bookmark and Promote!
No related posts.

Subscribe to this blog's
{ 4 comments… read them below or add one }
But, by adding a gclid= in a link, doesn’t that make a link chargeable to the google customer? If someone posted a bunch of gclid= links in newsgroup responses and then some clicked on them, the customer would be charged even though no google search even took place. Yes?
reply to anonymous:
No
You idiot.
I have to agree with the original poster. I would count as a hit because I see no difference in the tag’s of searchs. And, since the “you idiot” response was unexplained and rude. That also re-enforces that the individual knows nothing about tacked or what he’s talking about.
I’ve tested this using a ‘fake keyword’ that i use for testing my adwords account.
It does NOT duplicate the charges. Thank goodness.
But, I do agree with the assertation of the “idiot” response being rude and does increase the odds that person doesnt’ know what they are talking about.
If you know the law..argue the law. If you know the facts…argue the facts. If you know neither…scream and shout.
Just my $0.02.
Dave
Dave