Explain the relationship between the primary domain and the subdomain.

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Last week to Webmaster tools to check, the home page is not the first place. At that time did not feel much strange, because this situation see more, normally two or three days after the recovery. But this time one weeks has not recovered, let me feel that there may be down the right, because the rankings are all down. But found another problem, after discussion, found a little experience.

The above picture is our website under the site of a situation, fell to the fifth, was not a big deal, but caused a lot of decline in the rankings, there is a long time does not recover, search results are not with the best situation.

The original 5 keywords are Baidu's first hundred 5, but it fell into this. So it seems to be a bit anxious. But on the other hand, the snapshot and included or remain normal, included has been increased. It's confusing.

From these aspects in whether to drop the right among the struggle for a long time, the rankings caused by a sharp decline. But on the other hand, it can be explained.

In Webmaster tools, or Love stations, the results from the primary domain query are quite different.

The situation is very normal, the home page position in the first place, just a bit old snapshot, but the manual site is another case. Manual site, the first position well in the first place, no change.

But the rankings are the same, which makes me suspect that there is a problem with the subdomain, but the directory of subdomains and the primary domain is in the same directory. Suddenly I think of the Domain name drop right this matter.

But the domain name down the right is how, I talked with a few friends, and finally unanimously agreed that the domain name down right or someone manipulated the redirect.

Reason：

1, the previous period of time space to see our site did not do 301, and then the main domain 301 to the subdomain www, so I suspect that the subdomain under the WWW does not have any weight (weight value), so it is very likely that the homepage weight less than the internal page results.

2, as a result of redirection, I found that this site has a large number of outbound links, more for the business of the article content of the outbound, so in the source code plus a business through the outbound link nofollow.

3, the site another administrator accidentally found that the primary domain can not enter, but do not know 301 of things. Do not know what has been modified, plus a sudden change of title. Cause the new resolution of the WWW primary domain change problem, the same reason for the right to add a reason.

So it is very likely that the sub domain name under the WWW is down right.

So one by one, I found casually said down the right is unreasonable, down the right is what down right? A lot of online but not a reasonable explanation, but the right to reduce the power by keeping the original a lot of saying can recover. This I think is not true. So I did a subdomain under the WWW redirect to the primary domain. The problem is, even the home page position of the main domain down. So come to a result, the subdomain under the WWW is down right, only do not do 301 directional, use back to the main domain, then this situation is very likely to cause the WWW subdomain right. But in the included state, the main domain domain name is not included, that is to say that our ranking or to rely on the WWW subdomain.

In this case I still do not have a good solution, at present only by buy some high quality outside the chain with friends to try.

Yesterday deleted some problems friend chain, buy some one-way high quality outside the chain, today's ranking began to go up, but I am not sure if the result of the chain of friends, is still observing. Today's article is to teach you to identify the reasons for the right to fall and find the source of the method, the next will release the recovery method, and so on, please look forward to.

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