Do tracking tags on URLs pass link juice?
If you are using an analytic program, you have likely encountered the power of tracking your paid advertising efforts by utilizing tracking tags on your URLs. But can tracking tags actually do more harm than good? Are you using the right tracking methodology to measure your campaigns effectiveness?
I was recently asked these questions from a colleague of mine who was wondering what the best way to track a text link from another website with IndexTools Analytics. In short, I advised that the easiest way was to set up the campaign in the analytics to track visitors from the referring parent domain URL versus using a tracking tag because it would avoid duplicate content and also pass link juice to the website. However, when tracking PPC visitors, its best to track from the landing page URL with a unique tag. Clear as mud right? Allow me to elaborate…
If you set up your analytics to track a referring or entry page URL such as www.url.com/?source=websitelink that’s published on another website, the good news is that it will track the visitor in the right bucket. However, the bad news is that you run the risk that a search engine will crawl that URL and treat it as a unique page which unfortunately looks like an exact replica of www.url.com/ thus potentially diluting your PageRank. To correct this, a better methodology would be to set your analytics to look for the referring parent URL (like www.url.com) if the link appears on more than one page of the same website or set it to track the exact referring URL such as www.url.com/page-that-your-link-appears-on if its on a single page. By doing so, you will avoid the duplicate content issue and also receive link credit.
When tracking PPC campaigns, this is usually not possible because most PPC vendors like Google, Yahoo, MSN, etc. place your ads on more than just one site and also would be confused with your organic search visitors. To remedy this, setting your analytics to look for a unique landing page entry URL such as www.url.com/?source=adwords will allow your analytics to count all the visitors that was delivered by that advertising network regardless from where they arrived from.
If you are currently using tracking tags on your advertising campaigns, don’t panic. You only need to begin worrying about websites that provide a direct link to your website and many don’t for internal tracking purposes. In addition, your analytics solution likely has all of your campaigns located in a central place where you can begin your search for websites that you are currently tracking. With a little investigation, you should be able to locate campaigns and revise them with ease.
For more information on how to deal with tracking tags and other tips, please visit Google, duplicate content caused by URL parameters, and you

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Hey Christian,
It’s a small world, I just finished Chapter 3 (Campaigns) of my upcoming Yahoo! Web Analytics Book. A chapter where I actually spend a whole section on how to Identify Campaigns. Sent it to Wiley yesterday and received this alert today.
Great post and you are spot on. If I may add, you actually have a third opportunity, which is to pass on a the tracking string value in a variable _S_CMPQUERY. Thus outside the URL. (these variables will change in the upcoming release)
As an example where we might have a campaign use the following landing page URL to catch it:
visualrevenue.com/example/dennis.html?campaign=1.
And we envision that this is redirected to a permanent campaign URL as follows:
http://www.visualrevenue.com/example
Putting you in a situation where you might not be able to use the referring URL, you cannot use the landing page URL and there are no URL parameters to analyze. This is exactly a case where you would use the _S_CMPQUERY variable, having it equal the original campaign tracking string. Thus implementing (applying the following variable to the tracking script)
var _S_CMPQUERY=’campaign=1’;
This instrumentation will forward the campaign tracking information to IndexTools (Yahoo!) Web Analytics without having the tracking string displayed in the URL.
Cheers .. and have a great weekend
d.
Dennis R. Mortensen, Director of Data Insights at Yahoo!
Blog: http://visualrevenue.com/blog
Book: http://visualrevenue.com/blog/yahoo-analytics-book
Comment by Dennis R. Mortensen — August 28, 2008 @ 11:15 am
Hey Dennis,
Thanks for the heads up on the book and advice. We look forward to all the improvements your team will bring in the near future! Please keep us posted on that book.
Comment by Christian Del Monte — August 28, 2008 @ 11:36 am