<a href="https://chimly.org/seattle/seattle-chimney-pros/" title="Seattle Chimney Pros — chimney sweep and fireplace services in Seattle"><img src="https://chimly.org/seattle/seattle-chimney-pros/badge.svg" alt="Seattle Chimney Pros — chimney sweep and fireplace services in Seattle" 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.