<a href="https://silklaser.org/phoenix/az-lose-it-now/" title="AZ Lose It Now — laser hair removal services in Phoenix"><img src="https://silklaser.org/phoenix/az-lose-it-now/badge.svg" alt="AZ Lose It Now — laser hair removal services in Phoenix" 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.