<a href="https://microglow.org/new-york/sena-spa-skincare-scalp-care/" title="SENA SPA- Skincare&amp;Scalp Care — microneedling treatments in New York"><img src="https://microglow.org/new-york/sena-spa-skincare-scalp-care/badge.svg" alt="SENA SPA- Skincare&amp;Scalp Care — microneedling treatments in New York" 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.