Worth 500 Yuan SEO Course Tutorial Notes Announcement _ website operation

The following is my personal learning SEO courses Some of the notes, put out to share with you, say good about the top, said the poor also don't scold me, I am a Han man

The PR value algorithm principle is based on the following 2 prerequisites in general:

1, a Web page is referenced several times, it may be very important;
Although a Web page is not referenced more than once, it may also be important to be referenced by important web pages, and the importance of a Web page is passed on average to the pages it references. This important web page is called the authoritative (authoritive) Web page.

2, assume that users start random access to a Web page collection of a page, and then follow the link to the Web page to browse the page, do not return to browse, then the probability of browsing the next page is the PageRank value of the browsed page

Factors affecting the PR value
The PR value is embodied in 11 values from 0 to 10, with a horizontal green histogram shown on Google's toolbar and 0-level case white. It is for the Web page, not the site, so a site's home page and internal pages often have a very different PR value. Due to the Google market expansion process, the PR value of Chinese web pages as a whole is lower than the English page. For the Chinese site, with 3-level PR is the basis, 4-level PR to achieve the standard, 5-level PR is good, and 6, 7-level PR even quite excellent site. Of course, because the most direct impact of PR is from the link, so this rating does not represent the level of content, site content quality of the impact of the PR is indirect, long-term. According to the PR value of the algorithm principle, we know that the impact of a website (home) PR value of the main factors include:

1, the quality of the site's import link:
According to the previous analysis of the high quality import link, the high PR value needs to obtain the link from the following websites:

Join the search engine classification directory and have joined the directory of the site exchange links
Get links from PR values of no less than 4 and related or complementary sites to your topic
Your links are now large, high profile, frequent updates on important sites (such as news sources)
Sites with which you exchange links have little export links
With high content Quality website link (pr value rise potential big)

2, export the number of links:
According to the principle of PR calculation, because "the importance of a Web page is passed to the page it refers to," so in turn, too many export links within a page will potentially cause the loss of the page PR value. However, from the content point of view, the appropriate number of linked to the topic of the export links to the search engine to bring a good impression. Therefore, a page, especially the number of export links to the master, should take into account the PR value and keyword content between the two balance, that is, control the number of export links, to no more than 10.

3, search engine contains a site number of pages
In the discussion of SEO, people pay too much attention to the core keyword rankings and the performance of the home page, but often overlooked a very important question: that is, search engine on a site included in the number of pages. The latter also has extremely important significance in the SEO. A key keyword Query rankings poor site, may be crawled by a large number of pages and users use other keyword queries, the inside page to get the top three rankings. Because the user searches uses the keyword to have the dispersibility, causes this kind of situation often to bring the huge visit quantity to the website.

Because the number of pages directly affect the amount of access, so the impact on the PR value is also very large. The more pages are included, the higher the homepage pr. However, it needs to be emphasized that the amount referred to here refers to the ratio of the number of pages included and the total number of sites, rather than the absolute number of pages included. For example, a site with 50 pages is included in 10 pages, the site is included in the ratio is 1/5, a 5,000-page site has been included in 500 pages, the ratio is 1/10, the result is a collection of 10 pages than 500 pages of the site also has a more ranked advantage. But for each search engine, how far to achieve the ratio is good, there is no relevant data.

Attached: Query the number of pages included: in the search engine input: site:www.admin5.com (If input: site:admin5.com, then get the admin5.com domain name under all the two-level domain Name page number).

The first part: the domain name and the host to the SEO influence
Domain name and host is the foundation of the website, the commercial website chooses the domain name and the host especially should pay attention to the image and the quality, for the Network marketing development lays a solid foundation. At the same time, the choice of good domain name and host is also the first step of search engine optimization.

Domain name selection and SEO
Domain name and IP: Each site's domain name corresponds to an IP address, the IP address is assigned to each computer or network device on the network digital ID. Domain name must be resolved by domain name server (DNS), converted to digital IP, in order to make the computer understand identification, such as: 219.136.248.149 most of the SME site is stored in a server divided by a number of virtual hosts, by multiple Web sites to share a server and IP address, Some Web servers have hundreds of domain names sharing an IP address. This is less costly for webmasters, but it poses the following potential risks to the site's search engine rankings:

1, sharing the host of other sites if the search engine punishment, will more or less spread to your site. If there is a site cheating under the same IP, then our search engine will penalize all sites under that IP. Fortunately, most search engines are not so arbitrary, such as Google, generally do not carry out such a joint punishment.

2, if the search engine for some spammer server has been punished, its IP is considered to be spam, then all the sites under the IP will be implicated, so that the rankings of these sites declined or in search engines were cleared.