<a href="https://waxhub.org/san-diego/wax-facial-center/" title="Wax &amp; facial center — waxing services in San Diego"><img src="https://waxhub.org/san-diego/wax-facial-center/badge.svg" alt="Wax &amp; facial center — waxing services in San Diego" 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.