<a href="https://microglow.org/boston/skin-care-by-stavroula-award-winning-facial-21-years/" title="Skin Care By Stavroula Award Winning Facial 21 years — microneedling treatments in Boston"><img src="https://microglow.org/boston/skin-care-by-stavroula-award-winning-facial-21-years/badge.svg" alt="Skin Care By Stavroula Award Winning Facial 21 years — microneedling treatments in Boston" 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.