Since it is called "strength", it is not something that ordinary people can do. If you are an ordinary person, you should try it.
First: write soft articles. You may say, who can’t write soft articles? Yes, everyone can write, but it is not easy to write at a good level. Your soft article should be quite soft, so soft that others will not know it is soft article, or they will like it even though they know it is soft article. You want people who see your soft article to immediately want to repost it, immediately want to share it with their friends, and immediately want to go to your website. So your soft article was posted all over the Internet. Are you still worried that you have few external links? There is only one article! This is much easier than posting comments all over the Internet, but we have to have that ability.
Second, if you can't "literate", then you can only rely on technology. Can you design web templates? This is also a good method. In the past two years, I was working on a blog site. When I had nothing to do, I would make a few beautiful templates and share them with everyone. Ever since, there have been more external links. Some people are unscrupulous and will delete your links. However, the vast majority of webmasters are good and they will keep your reasonable links. If you use other people's things, you should also give some reward, right?
Although the method is available, we don’t have the ability or time to do it. For z-blog, I haven’t studied how to make templates. I will study it when I have time. I have been too busy recently. This website http://goodxml.cn chooses a relatively simple template, so simple that it doesn’t even have a website title. I have kept both the author's link and the z-blog link, and hope that all my colleagues will remember to be grateful after using other people's free stuff.