<a href="https://microglow.org/oklahoma-city/dermatology-and-aesthetics-of-oklahoma/" title="Dermatology and Aesthetics of Oklahoma — microneedling treatments in Oklahoma City"><img src="https://microglow.org/oklahoma-city/dermatology-and-aesthetics-of-oklahoma/badge.svg" alt="Dermatology and Aesthetics of Oklahoma — microneedling treatments in Oklahoma City" 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.