Referring domains are external websites that contain links to your website and drive traffic in there. If you link back to other websites, you can be considered as a referring domain as well.
Referring domains can create the reputation as a credible source in both the minds of people and the memory of search engines. However, they may also ruin all the SEO efforts that you have put in before.
Factors to Consider While Selecting Referring Domains
In order to avoid the latter, try to choose referring domains wisely. You can judge by:
The Quality of the Domain
Low-quality pages are those with bad content and design, low visitors number, and low position in search results. Try to avoid this type of referring domain.
Relevancy
If you get backlinks from irrelevant referring domains, do not expect an increase in traffic and better positions in search results.
Diversity
Diversity of referring domains is more profitable for you in terms of traffic since you will have different visitors. Search engines see it as more authoritative as well.
In order to get more referring domains and, consequently, backlinks, focus on the content. Define what the top-performing pages are in terms of backlinking and what their common characteristics are. Case studies and statistics usually get the most referring domains so think about posting those as well.