Diversity of types of external links: anchor text external links, hyperlink external links, plain text external links, picture external links are used respectively

Diversity of keywords or URLs of external links: do not just the home page, the inner page, the list of pages should also be

Related industry or industry upstream and downstream: seo related to go to, for example, seowhy

Publishing address and the diversity of the account: do not Only post a platform or only use an account

Now the most effective external links is the friendship link, and the same industry or industry upstream and downstream sites to exchange links.