
Or the most common and easiest way is to create a signature containing back-links in the form of anchor text containing the keywords you are doing SEO for.
That back-link must be valuable.
When you want to join a Forum and contribute articles, the first thing you need to do is register as a member. After successfully registering and logging in, you will have full rights as a member and can change your “signature” or directly insert back-links as anchor text containing keywords into your articles.

So when “not logged in”, how will the back-links you just created be displayed?
And below is the result you have been waiting to see. “Only admins are allowed to see this link”
Or sometimes you will see “You must be registered and logged in to see this link” in some other Forums.

With what you just saw, what do you think about building back-links on forums? This is a specific example for Seoers to pay attention to when creating back-links, some Forums when we “no login" then the newly created back-links are still displayed normally and retain the link value. But with some Forums like the one above, this is completely eliminated, because the back-links in the form of anchor text containing keywords will be replaced by announcements from the Forum and lose the link value that Seoers desire (Figure 2). From all of the above, you might think this problem is simple, right? However, because of its simplicity, some SEOers often do not pay attention to it when doing SEO, and I am sure this is still happening until you read this article.

Advice from Minsoftware: Building back-links from quality Forum sources will be very useful in an SEO campaign, it is an important factor to change and consolidate the ranking of keywords on SERPs. But to get that result, make sure of one thing: “First of all, your back-links actually exist and are valuable.”