1. Traffic: External links are the most direct means to improve rankings, but click traffic is the core meaning of links.

2. Single link: Friendship links are like two people holding each other, and single necklace links represent full appreciation of each other!

3. Spontaneous link: Spontaneous link means that when the other party updates the webpage article, they can actively add a link to your website, indicating that the content of your website is truly recognized and valuable!

4. Relevance of content: This is equivalent to being separated from each other. Only external links between the same industry can be more reliable. This content relevance does not apply to the whole site, but also to the inside pages. At the same time, upstream or downstream industries also have good results (related industries).

5. Tracing text: target appears in external link key word It has a great effect on ranking improvement. You can link websites with different weights according to the priority of keywords, that is, unimportant keywords can link to websites with low weights, and the types of descriptions should be diversified.

6. Link location: Usually, the friendship links we make are the home page of the link, and they are a special section. The really best external links are those in the body, because they are most likely to form spontaneously.

7. Domain name weight and ranking: the registration time of the domain name sending the link and the ranking of the target keywords directly affect the effect of the link. Domain names that can rank top dozens of target keywords are also good sources of links.

8. Page weight and ranking: When making external links with some large websites, they usually cannot be reflected on the home page, so the weight and ranking of the pages that send general links are also very important. Sometimes the external links of an internal page are not as bad as the external links of the home page.

9. Number of exported links: In general, the more exported links, the less weight each link gets. Generally, there are no more than 30 exported links on the home page of small websites.

10. Page update and snapshot: In general, the faster the page update, the higher the weight; otherwise, it is not true.

11. The overall health of the website: including the website's collection, traffic, page layout, article value, and whether it has been punished, and whether it is a junk website. Generally, people think that websites with domain names such as edu and gov are less likely to be junk websites (mostly government school websites).

summary : The construction of external links is off site SEO optimization The important part of SEO Outer chain It is an extremely important link. Many companies will hire external chain specialists to be responsible for the distribution of external chains. In China, the threshold requirements for this position are very low, even without considering education and work experience. It only needs simple training to get started. The understanding of SEO naturally leaves only a few theoretical knowledge in books. Of course, the salary is also low. Basically, the minimum wage in each city is 500-1000. Not everyone can do well in the chain, and there must be many skills. At the same time, there are also many reasons for the chain to constantly learn the concept of SEO, strengthen itself and embark on the road to success.