The outer chain of 1 contains the label of rel="nofollow ".
Rel="nofollow reminds the crawler not to pay attention to this link, and of course it will not pass the weight. Such an external chain is meaningless. In the process of link exchange, some webmasters also cheat with this label, which makes people ugly. ,
2. The source code is JS.
Such an outer chain can't collect reptiles and transfer weight normally. For example, in the source code, Zhang Yanan appears normally inside, but when clicked, the following prompt will appear.
3, shielding the dark chain.
Some forums probably added dark links when editing, but after the announcement, the links were enthusiastically lost. Such external links are not invalid.
4, mistake the text as an external chain.
Many friends see that the classification speed and weight of 58 Tongcheng and Jiji.com are high, so they regard these web sites as the bases for sending out links one after another. If it's not true, there are no published links before and after this page, which can only be regarded as text by the crawler, and it can't play the role of transferring weight.
5. Don't post deceitful or deceived content on K's web.
6. Don't post on the Internet where posts are often deleted.
The deletion of external links is equivalent to adding a dead link, which makes it easy for web pages to enter links and stir. What is the invalid chain caused by strong wind? Generally, the outer chain caused by strong wind has the following principles:
1 to ensure the relevance of the link.
2. Don't overuse links.
3. When looking for coherence, just use keywords in the anchor chain text.
4, carefully check the target link, defense link to K's web page.
5. Don't create web pages that only contain links (except web maps).
6, often check the dead chain, Baidu space, repair broken links.
For a new station with neither money nor resources, staying outside the forum is the most tributary method. However, in the theoretical monopoly, many misunderstandings have been found. Here boast three points, be careful of accidents.
A, the outer chain in the signature and the outer chain in the post have the same result. Don't sign. No need, Phoenix Blog.
5, revisit the old place, I am familiar with nightmare, and I have to violate the rules of the forum and leave an external link in the post. Just like pushing the forum, when pushing the forum, the signature is approved to leave the link, not to mention the widely published link area when it is convenient. In addition, this area has a high weight. However, many members don't need these crooked ways, so they should leave many links in their posts. No matter which forum you are in, there are only two ways to go: the negative ones will eventually be blocked. After all, serious websites are blocked by each other forever.
B, the external link in the forum belongs to the link of the content page. The weight of this link is very low. If you want to rely on this link to enhance the weight of the page, it is the ranking of keywords, which requires a lot of money. Note that when I say a lot here, I mean that there are more target forums that send links, not a lot of links in a forum. We must make this clear. Of course, to compete with a forum, it doesn't mean that an off-line post will be done, and it needs to be sent frequently. For example, if you compete with a forum and send three or five links a week, personally, one day is enough.
C, forum links should also be done continuously, neither more nor less. Than sending hundreds of thousands of chains a day. I stopped sending it after that. Like uncle Ge You's head, the optimization is too obvious. Search engines know it sucks when they close their eyes.
I hope I can help you!