If you understand what tradelines are, you can use them to your advantage to effectively to boost your credit score. Here is the quickest, most down to earth answer possible:
If you have positive accounts, you will have a better credit score. If your accounts are lacking, you will have a poor credit score. So, having (or adding) favorable accounts to your credit report results in an increased credit score. Many of us don’t have years to wait for a better credit score, but we feel there isn’t much we can do to improve them quickly. Well, one thing you can do is add a tradeline. You, the “receiver,” inherit the payment history and characteristics associated with that positive account. If that account is in good standing, your credit score will reflect that information and your credit score will increase.