External link refers to the link to import your own website on other websites. Importing links is a very important process for website optimization. The quality of the import link (that is, the weight of the page where the import link is located) indirectly affects the weight of our website in the search engine.
Outer links are the blood of the Internet and a type of link. Without a link, the information is isolated, and the result is that we cannot see anything. It is difficult for a website to achieve everything, so it is necessary to link to other websites and absorb the information that other websites can supplement. The link to the external link is not the quantity, but the quality of the link.
The effect of the external link is not only to increase the weight of the website, but also to improve the ranking of a keyword. A high-quality external link can bring good traffic to the website.
Since the search engine has attached great importance to the link, the link has completely changed, and it has become a tool for the website to try to improve its position in the search engine ranking.
Google believes that a website that is linked to by everyone should be a good website. How could so many people like him? The more people like him, the higher its PR value is, and the greater the weight of this page. Links on other websites can bring more traffic.
Since major search engines such as Google have used the link breadth of the website as an important factor for ranking reference, the more websites link to your website, the higher your website ranking will be. At the same time, the quality of links is also an important factor considered by search engines. Links in high-traffic sites have more advantages than links in low-traffic sites. However, the specific situation depends on the situation.If the external links linked to some sites with low weight and low quality have little effect on their own websites, if they are linked to some websites that have been K and some junk and vulgar, then It may cause spiders to cause adverse effects on their own websites! Therefore, the quality of the external chain should also be paid attention to while achieving the quantity!
Two trends of external chain
One: Uncoordinated friendship links will gradually disappear
Two: Baidu's own product delivery weight is reduced
Lulu algorithm is a search engine anti-cheating algorithm launched by Baidu on February 19, 2013. The algorithm mainly combats the fraudulent behaviors of hyperchain intermediaries, betrayal links and purchase links.
Origin of the name
Green dill is the name of a plant. Environmentalists have found that a pot of green dill in a room of 8 to 10 square meters is equivalent to an air purifier, which can purify benzene, trichloroethylene and formaldehyde in the air, so it is very suitable for placement in newly renovated rooms. Baidu's intention is also this, Lulu can purify the air environment. Baidu's algorithm is named after Lulu, which aims to purify the Internet environment and better improve the user experience.
Baidu official announcement
Announcement of Baidu Luluo Algorithm Launch
Author: Baidu Web Search anti-cheat team
Release time: February 19, 2013
In fact, the Baidu search engine has been fighting against cheating, and SEO has always been simply regarded as "content is king, and external links are kings". It was even a post of foreign chain commissioner that really admired the wisdom of the Chinese. But it seems that this job is likely to perish. In 2013, Baidu Luluo algorithm was launched and became the terminator of buying and selling of foreign chains!
The following is the latest announcement of Baidu webmaster platform for cheating on external links!
Dear webmaster friends:
More than three months ago, we shared Baidu ’s attitude towards hyperchain cheating with friends of the webmaster. After a period of observation and data accumulation, we are very pleased to see that some websites have stopped this behavior and gradually eliminated it. In addition to the previous fraudulent hyperlink, this is very valuable for the positive development of our Internet ecological environment; but at the same time, we are still sad to find that the repeated emphasis on buying and selling links still exists in large numbers. Here, we remind again This part of the webmaster, such links have long been recognized by the system and have been removed from the link calculation.
We need to emphasize again: on the one hand, buying and selling links affects the user experience and interferes with search engine algorithms; on the other hand, speculators benefit from site builders, and hyperchain intermediaries benefit from it. In the harsh Internet hyperchain environment, the due rewards cannot be obtained. Therefore, we will make further adjustments to the site itself on the basis of clearing the calculation of external links for buying and selling links.
In this adjustment, the following three types of websites will be affected to varying degrees:
1. Hyperchain intermediary
Hyperlink should have been a relatively high-quality recommendation on the Internet, affirming the content of the page and the value of the website between ordinary users and websites. However, all kinds of cheating on the hyperlink have turned the true affirmation into a stepping stone for some people to seek benefits. Users cannot Find the high-quality resources needed according to the recommendation of the link, and seriously interfere with the search engine's evaluation of the website. Hyperchain intermediary is the evil flower formed under this abnormal hyperchain market. We are obliged to maintain the purity of the superchain and protect the interests of users. We also have the responsibility to guide the friends of the webmaster to stop spending unnecessary expenses, so the superchain intermediary will Within our target range.
2. Websites that sell links
There are many profitable methods for a site, attracting fixed users with high-quality original content, introducing high-quality advertising resources, and even holding offline events. These profitable methods are what we are happy to see and are the real value of a website. However, the content of some websites is basically collected from the Internet, and it is based on selling the location of the hyperlink; some institutional websites or leased by the link intermediary to sell the link location, making the hyperlink market bubble blow more and more. This adjustment will also affect such sites.
3. Website to buy links
All along, Baidu will protect and support high-quality sites, which is an inevitable result from the perspective of user needs and entrepreneurship. Some webmasters do not use their energy to improve the quality of the website, but choose to use tricks, exchange money for hyperlinks, deceive search engines and deceive users. For entrepreneurs who do n’t have much resources and money for such expenses, it is also an invisible harm. If they are not curbed, bad currencies will expel good coins, which will inevitably lead to an even worse Internet environment. This adjustment of such sites will also be affected.
Finally, I would like to thank the webmasters who are devoted to doing a good job of the station, and thank the users for years of use. These are the motivations for our efforts to purify the Internet environment. Friends who are still in the whirlpool of hyperchain trading, stop this invalid behavior as soon as possible, and realize that high-quality original content, unique services, and information organization for users are the correct path for a website to gradually grow. . In the future, we will continue to provide users with convenient services from these perspectives, and bring more profit for more webmasters.
The first move is to optimize the internal chain and reduce the concentration of the internal chain.
Check the internal links in the 100 articles posted within one month of the website one by one, and remove the internal links that link to the homepage and the internal links that are not highly relevant. Ensure that each article has 1-3 internal links and is distributed throughout the site.
The second move, remove the station that seems to be K
For the K station, you can only stay away, this is also no way, Baidu's "Zhulian Nine Clan" wrist dare not offend.
The third move, optimize the friendship link
Change the anchor text of the friendly link to the name of the website pointed to, and remove the extra words at the same time.
The fourth move, the number of website original article updates doubled
It turns out that the website publishes 1 article every 2 days. I suggest 1 article a day to guarantee 100% originality. Send continuously until the ranking is up.
The fifth move, start to properly send out some high-quality links
These external links are not buying and selling links. It is necessary to ensure that the content of the link, the publishing platform and the link are highly relevant, and the link pointing must be an internal page.
Sixth, add nofollow to all outbound links
There are some advertising links on the website that cannot be removed for now. You can only add robots.txt file in the root directory to block Baidu spiders.
The seventh move, complain to Baidu
Learn to dig out and organize external resources. The resources of the external chain are not meant to exist. We need to mine and accumulate them. Find some sites that are highly relevant to your site and have a certain weight to send links to.
1: You can obtain external resources more easily by analyzing our competitors' sites;
2: Outer link resources can also be searched through the search instruction mining method, such as inurl and intitle two instructions to find the outer link method;
3: Rely on your network to increase external resources, such as exchange with friends, exchange with netizens, etc.
How to judge whether a website is suitable for external links
1. Check the robots.txt file on the website to see if the column you posted on the robots.txt uses the disallow tag to block the Baidu spider.
2. Check whether the website has done dynamic page static processing. Although Baidu includes dynamic pages, the inclusion rate of static pages is much higher than that of dynamic pages.
3. Whether the link is a jump link. Some websites may seem to have links, but after viewing through the source file, or browser display. What you see is that your link takes your link after the current website. Such links are called jump links. For the jump link, Baidu can not traverse to identify the link behind, so such a link is invalid.
5. The website uses nofollow tags. Such websites can only be viewed through source files. The nofollow tag is used in front of the tag, so even if the current page is included by Baidu, the nofollow tag will block the transfer of weights. But for anchor text, such a website will not affect the true role of anchor text.
Type of external chain ranking influence
The direct purpose of SEO is to make the target website have a better ranking in the keyword search corresponding to the search engine. Website optimization ranking, site optimization is the foundation, and the construction of external links is the key. When the internal optimization of each website is indispensable, you want to rank high, and the quality and quantity of the external chains are spelled out. Different websites and different keywords have different requirements for external links. How is the external chain classified?
1. Exchange friendship links
2. Outer link of website catalog
3. Bookmark bookmark chain
4. Blog space external chain
5. Encyclopedia edit external link
6. External links of knowledge question and answer websites
7. Forum Link
8. Message board external chain
9. RSS submission website link
Low-quality external links: blog messages, forum posts
High-quality links = links from high-weight pages + links from highly-relevant pages
According to the language (coding) of the web page, the external links can be divided into:
Simplified Web Link
Traditional Chinese Web Link
English web link
Links to other languages
The outer chain is divided into
Hong Kong and Taiwan region
U.S. regional links
Links in other regions
External chain classification
Manually do the external link
Software mass sending as external link
Self-built station group as an external link
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