On the application of "canonical" Label in SEO optimization

The "canonical" label was launched by Google, used to standardize the content of the page is highly similar to the page, such as we have a few pages are related to tea sets, when we optimize the key words related to the tea, we will encounter do not know the link to which page good, at this time we can take one of the pages as an important page, With the "canonical" tag, the search engine will index the page. Although this label is launched by Google, but now in the Baidu search engine also take effect.

The "canonical" label is more commonly used in forums, because the Forum comments page more, when you define good, search engine will be included in one of the pages, for everyone familiar with the A5 webmaster forum to look at, feel free to find a comment greater than two pages, you will find that only the first page is included, Others are not included, such as posts: "False original and original what is the difference":

　　

　　

We found that only the first page was included in the search engine, and the second page, the third page is not included, and then look at its code:

　　

Every page that I found commented on was added

This code, so the search engine will only index this page, other pages will not participate in the ranking of keywords, which can also be seen Baidu search engine also recognized this attribute.

So in our SEO outside the chain should pay attention to the construction, whether it is a personalized signature or forum reply with links, when the number of comments on the post, we should give up, many friends think that only should rob the sofa or bench, to the back of the personality signature will be more and more small, in fact, to the back is simply no effect, Because when we are outside the chain in the second page, our posts will not be included in the search engine. And the assumption that our forum signature on the first page, others comments can be our posts from the top up, the weight of the posts with the rise.

"Canonical" label can solve too many similar content, resulting in high page repeatability problem, with this tag you can arbitrarily let the search engine crawl a want to be included in the page. Article by the Gift Tea set (http://www.zuipin.cn/chaju.html) feeds.