Resolve duplicate pages with trace tags such as UTM

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Whether it is the URL setting of PPC, or SEO page tracking, it is unavoidable to add a variety of tags to the page (tracking code), commonly used marking methods after the URL through? Or # with a set of tagged content to facilitate data analysis in the Traffic Statistics analysis tool.

In addition to adding tags manually, Google's URL builder is a good tool https://support.google.com/analytics/answer/1033867

But no matter what method, the tag page because the URL is not standard, there will be a large number of URLs the same but the content is consistent repeated pages, which will produce a typical SEO work of the page standardization problem. I've searched a lot of posts that have discussed similar issues before, and the answers are all sorts of things to do here.

Before dealing with the problem of standardization of URL pages, we must first distinguish between the reasons for producing non-standard pages, and different reasons. In addition to the URL tag, the different types of screen, as well as the homepage with no WWW and other different forms of Web sites, will also cause the problem of page standardization. Here only talk because do link tag produces not planning page processing method, because this problem solves the most complex, basically solves this problem, other page standardization problem also can solve:

1, first look at whether the page has been included, if not included, and the background flow is not large, I think can completely ignore its impact, do not make any changes.

2, once included, you must set the canonical label. will not standardize the site through canonical point to the canonical page, because these pages are not the actual page, so Baidu has now supported canonical tags, there is no need for canonical label issues and the difference between Google and Baidu.

3, in the robots.txt to screen the link is not standard. If you are sure of the link structure in the station, all the dynamic address of the Shield belt can be, if there is still part of the page is useful, then you need to mark the page for URL rules collation, and then write shielding rules.

4, Google webmaster tools, "URL parameters" tool, can be very good to help Google solve this problem, the instructions please: https://support.google.com/webmasters/answer/1235687

In addition, it is recommended not to use 301 to jump, it may cause the failure of tracking code, if the page is counted as 301 jump after the page, then the tracking code is meaningless.

Reprint Please specify: From only my website operation http://www.vivawo.com/post/canonical-url.html