Backlinks are a huge factor in not only signaling to Google that you are an authoritative and credible site but also helps to determine your Domain Authority score. According to Backlinko, Backlinks are one of the most influential factors in search ranking. Not only are they important on the back end of your site, but they also signal to individuals on other sites that you are trustworthy. The more authoritative domains mention you, the more likely you will be perceived as a trusted source. Also, the extra links create another backdoor for online traffic to direct itself onto your site.

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