<a href="https://findteethwhitening.com/honolulu/honolulu-smile-design/" title="Honolulu Smile Design — Teeth whitening services in Honolulu"><img src="https://findteethwhitening.com/honolulu/honolulu-smile-design/badge.svg" alt="Honolulu Smile Design — Teeth whitening services in Honolulu" width="300" height="84"></a>

Paste it into your website — most site builders (Wix, Squarespace, WordPress) have an "embed code" or "custom HTML" block. The footer is a good spot.