Summary SEO must know nine major concepts

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Links: Also known as site exchange links, reciprocal links, interchange links, alliance links, etc., is a certain resources complementary advantages of the site between the simple form of cooperation, that is, on their own site on the site to place the logo picture or text of the site name, and set up the other site hyperlinks (click, Switch or pop-up another new page, so that users can find their own site from the cooperative site, to achieve mutual promotion purposes, so often as a basic means of website promotion.

Reverse Link: Take a simple example of my site: if you leave an address on another site, then this address is a 588-part web backlinks, and this link is its reverse link.

Simply put, there are several links to your site, and you have several backlinks. How do I know how many station links point to my station? How to view backlinks more accurately? We recommend using Google Webmaster tools. The main features of the tool are: You can query the site all the internal pages of the reverse link, other tools may only be able to query the homepage of the site. In addition to querying the number of reverse links, you can also view specific links. can query internal links, that is, the direct interconnection of internal pages. All external links can be downloaded for comparison.

External links: External links refers to the search engine links, high-quality external links and your site to establish links to the site well-known high visibility, a large number of visits, while relatively less external links, to help and quickly enhance your site visibility and rankings. The role of external links in the internal links have a rough introduction, please read carefully.

Cross-linking: the basis of the cross link or friendship links, but the common link is two of stations exchange links, cross link three stations or more stations to exchange, in the form of the following two kinds of main. Form 1: Cross link between three sites you have a site and B site, find each other's C site links. You use a site to link to each other's C site, so that each other's C site links your b site. Form 2: Cross links between four sites you have a site and B sites, and links to each other C site D site. You use a site link to each other's D site, the other side of the C site link to your B site. This is also a form of cross linking.

Internal links: In contrast to external links (that is, backlinks), internal links refer to links between content pages under the same site's domain name. such as channels, columns, the ultimate content of the link between the page, and even the site keyword between the tag link can be categorized as internal links, so the internal link we can also call the link inside the site, the optimization of the internal link is in fact the website of the station link optimization. We all know that external links can improve the authority of the site, and then promote the ranking by the front, then the internal link and what role? The importance of the reverse link, many SEO projects in fact to the latter is the external link exchange and maintenance, which also visible external links to the importance of the site rankings. But many SEO will be external links as the site optimization of all, this is actually very wrong, because the reasonable arrangement of internal links, especially large sites, reasonable internal link deployment strategy can also greatly enhance the site's SEO effect. As SEO, we should not ignore the great role of the link in the station

Dead link: Simply, dead link refers to the original normal, later failure of the link. When a dead link sends a request, the server returns a 404 error page.

There are dead chains in these cases: Dynamic links become dead links under conditions that the database no longer supports. A file or Web page has moved its location, causing the link to it to become a dead link. Web content updated and replaced with other links, the original link into a dead link. Site Server Setup error. From the user's point of view, dead link and Error link performance is the same, so generally we do not need to distinguish between dead link and wrong link. So we want to avoid the site dead link, because from the dead link how much can evaluate a website good or bad.

Bad link: A link that does not exist, is the wrong link. The difference between a bad link and a dead link: the wrong link is due to the user's negligence and the requested link does not exist. Dead link is the original access to normal, and later because of the changes in the site can not access. An error link occurred: The user spelled the domain name incorrectly. The URL address was written incorrectly. The URL suffix is redundant or lacks a diagonal bar. The letter capitalization that appears in the URL address does not match exactly. The 404 error page effectively avoids this kind of thing happening like my small station.

SEO Black Hat: Simply speaking is the use of search engine prohibited way to optimize the site, generally we call SEO cheating. Are doing SEO, why there are black hat and white hat points? For example, a mass message added outside the company, this is a typical black hat behavior. Because this way to increase the external links affect the interests of other sites, but also affect the search engine on the site rankings of the reasonable and impartial. Search engines want to stop this practice, so this is called Black Hat. White hat? The use of SEO thinking, reasonable optimization of the site, improve the user experience, reasonable and other Web site interconnection. So that the site in search engine rankings upgrade.

sandbox-Sandbox effect: The new station in the first few months on the line in Google is difficult to have a good ranking, or even rankings. This phenomenon we call: sandbox-sandbox effect. A new website, even if it has done a very good SEO optimization: Rich related content, a lot of high-quality external links, website URL search engine friendly, site structure user experience friendly and so on. But in the few months that have just come online, there is hardly a good ranking in Google. Google's sandbox-sandbox effect will generally last 6 months, this 6-month new station should constantly improve all aspects of SEO, after the sandbox effect, the general will have a good ranking. Baidu also has a "confidence-building period" for the new station, typically 2 months. In the two months, too much to modify the site structure, modify the title of the article, will cause Baidu to the site to reduce the degree of trust.

The above is the youngest brother summed up the nine SEO concept, there are improper places please the majority of the webmaster pointed out. Reprint please explain from Changsha part-time network: www.588jz.com Thank you!