The full text of Baidu's relevant rules can be found in "Baidu and Webmasters". After reading it carefully, it can be concluded that the possible reasons why a site is refused inclusion or punished by Baidu are as follows (note: a corresponding analysis is added after each one):
1. Accumulate keywords that have nothing to do with the text in the title.
It emphasizes the mutual echo between the title and the website content. If the title involves a certain keyword and the actual website content has nothing to do with the keyword, it may be deleted by Baidu. This clause reflects Baidu's strictness. But it is worth thinking about. What’s more, what method does Baidu use to judge the correlation between the content of the website and the keywords in the title? Does it mean that if a certain keyword appears in the title, the text must appear? If not, can Baidu’s current search technology be as good as Like people, they will analyze from the meaning and logic? For example, can a machine determine that the acrylic in the section title means the same as the plexiglass mentioned in the text? Of course, if Baidu uses manual review of all sites, then this article will be very important. Okay, very operational! But another question arises, whether manual review is relevant or not, whose opinion shall prevail?
2. Pages that use automatic jump may be discarded by Baidu.
This article does not require much comment, it is mainly used for jumps used in some cheating behaviors. Most search engines will have similar terms.
3. Don’t have too many links on the same page. On those sitemap-type pages, link to the important content rather than all the minutiae. Too many links may also result in the page not being accepted by Baidu. How many connections are too many? Google also recommends that it should not exceed 100. What about Baidu? Baidu can punish most large sites arbitrarily with this one, and most large sites have such a page on their home page. There are dozens or even hundreds of connections.
4. If your site has done a lot of optimization for Baidu but brings a lot of negative experiences to users, then your site may eventually be left out in the cold by Baidu.
What does excessive optimization for Baidu mean? Can there be more detailed standards? Although the meaning of this sentence is very good, it seems that any conscientious netizen should applaud it, but the key question is what are the specific operating standards? Excessive Optimization and negative body thoughts, everyone has a different perspective. For example, I just feel that the first page of Baidu search results is full of ads, which affects my feelings. Should I delete it?
5. Baidu may not include content that has been repeated hundreds of times.
No comment on this. I just want to remind everyone to find something innovative when copying content.
6. Linking to some junk sites may cause your website to be negatively affected. Therefore, when someone enthusiastically asks you to provide a link to his site, please review the following two points:
a. Is the other party’s site high-quality in its field? Many of the so-called traffic and rankings among webmasters are obtained through deceptive means and cannot be maintained for a long time.
b. Is the link name requested by the other party commensurate with the status of the other party's website? Using a wide-ranging keyword as a link name for a website with very limited content is likely to have a negative impact on your website.
Baidu is a bit too naive in this regard. Baidu punishes a site and can interpret it arbitrarily based on this point. If there are several links on your website, and the name of one of the links is not commensurate with the status of the other link, you can find reasons to abandon your site.
7. If your website content does not comply with Chinese laws, it will not be included by Baidu. There is no need to say more about this.
8. If your site page structure is complex, it may not be indexed by Baidu. Baidu only mentioned points 1, 2, and 3 above as possible reasons for the inability to include due to complex structure.
9. Baidu does not promise to include all sites.
We respect Baidu's freedom. Of course, if Baidu does not need to respect users, it can be explained by this point when it blocks any site, and it makes people speechless.
10. If the web pages in your site have been processed a lot for search engines rather than users, so that: the content users see in the search results is completely different from the actual content of the page, or the quality of the site is different from the site in the search results. If the ranking is extremely disproportionate, causing users to feel cheated, your website may be dropped by Baidu.
These two points cannot be verified by machines, they can only be determined by humans. What is disproportionality. What does it mean to be cheated? Only public opinion is reasonable. Of course, Baidu is the boss and its anti-fraud team members have the final say! Based on this reason, most sites can be deleted. It seems that Baidu will require websites to provide relevant authority and industry status certificates in the future, so that they can obtain corresponding rankings, otherwise they will be deleted!
11. If a large number of web pages on your site are highly repetitive content copied from the Internet, then your site may also be discarded by Baidu.