Shulou(Shulou.com)06/01 Report--

First of all, this paper introduces the four steps that the search engine must go through: crawling, filtering, indexing and showing. The number of recorded pages in the usual sense refers to the number of web pages displayed by search engines.

These SEO restricted areas lead to the non-inclusion of website content.

1. Website SEO cheats, or has a history of black hat SEO

The website has SEO cheating, such as the most common keyword stacking, inner chain stacking, fast ranking, etc., or the website domain name has a history of black hat SEO and is being punished by search engines. This situation may cause the content of the website not to be included.

2. Robots.txt once blocked search engine crawling

In the search engine collection of the four necessary steps, crawling is the first step. Robots files are forbidden to be crawled by search engines, so website content cannot be included naturally. But there is also another situation, that is, the robots.txt file once blocked the search engine, during the blocking period, the search engine visited many times without success. After that, even if the robots.txt file is unsealed, the search engine may not crawl it.

The solution is: ① to verify Baidu webmaster tool; ② has a "robots" in the page crawl bar to detect and update robots files; ③ submits web links.

3. The website is unstable

The following situations can easily lead to the non-inclusion of the content of the website:

A. the website frequently modifies the title of the website.

B, change the website domain name, space, IP

C. Change the website template

D. frequent revision of the website

The above situation will change the inherent impression of the search engine to the website, after the website change, the search engine needs to rejudge the website, during this period of time, the updated content of the website may not be included.

4. analysis of the common situation that the website is not included.

A, the search engine cannot crawl

The entry of important pages of the site uses js settings, or a large number of iframe framework structure, will cause the site content can not be crawled by Baidu.

B. The search engine didn't grab it at all.

Analyze the web log or view the Baidu webmaster tool "crawl frequency" to see if Baidu has crawled records. If not, the webmaster needs to submit it on his own initiative.

C. Crawled, not included

At the beginning of the article, we have already talked about the four steps necessary for website content to be included by search engines, and crawling is only the first step. There may be two situations in which capture is not included:

After the content of the ① website was crawled by Baidu, it has been placed in the index database and has not been released for the time being. This often happens on new sites, which may include only one home page a month, and then suddenly the number of entries soars one day. For this, the webmaster only needs to keep updating.

The poor quality of ② website content leads to the non-inclusion of website content, which is often the root cause of website non-inclusion.

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