What exactly may be unclear:

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Ahrefs has few/no links, but the site is in the top
This situation is possible for two reasons. First, if the project is old, the owner hides links from competitors so that they cannot repeat his successful link building strategy. Second, if the site is very young (up to 2 months old), Ahrefs has not yet had time to find its links. In both situations, we do not consider such sites and move on to the search for the next competitor.

low quality links, but the site is in the top
This situation can be caused by three reasons. The belgium telegram data first is that the site operates in a gray/black niche where spammy linking is used. The second is that a competitor places good links and hides them, showing only spammy links. The third is that a good site could be driven away by its competitors with spammy links. In all these cases, we also do not take sites for analysis of their linking strategy, because it is impossible to understand the real situation on such projects.

Building a link building strategy based on competitors is effective if you find the right competitor, cut out the unnecessary, pay attention to their dynamics, guest posts, and backlinks, and then quickly calculate your link building budget. With this approach and constant practice, you will learn how to implement truly effective link building into your projects.