Not every opportunity is worth your time. Qualifying is the quick judgment you make before reaching out: is this link relevant, is the site strong enough, and can I actually reach someone? Serpfeed surfaces the signals so the call is easy.
Relevance
The most important signal. A link from a site in or near your niche is worth more than a link from an unrelated one, both to search engines and to the real people who might click it. Competitor gaps and resource pages tend to score high here because they already point to businesses like yours.
Authority
How strong the linking domain is. Serpfeed shows a domain rating so you can tell a well-established site from a brand-new one. Higher is better, but pair it with relevance: a smaller, on-topic site can be a better link than a large, unrelated one.
Spam and traffic
A spam signal flags domains that look low-quality or manipulative, which you generally want to avoid. An estimate of the site's traffic tells you whether a link there could send real visitors, not just pass authority.
Contactability
A great opportunity is only actionable if you can reach someone. When you accept an opportunity, Serpfeed looks for a contact so outreach has somewhere to go. No reachable contact usually means directory submission or a form is the better route than email.
The Serpfeed Score does this for you

