If you would like to embed an IDX frame within your website, as opposed to having the IDX link produce the results in a new tab, you can use a HTML tag called IFRAME. An IFRAME can be added to your website by adding a simple line of HTML code to your website. For assistance accessing your webpage's HTML code, please contact your hosting provider or the person that manages your website.
<iframe class="iframe-class" width="100%" height="1250" src="AGENT IFRAME LINK HERE" frameborder="0" scrolling="yes" marginheight="0" marginwidth="0" allowtransparency="true"></iframe>
Note, you can adjust the height and width values to meet the needs for your specific website. The URL in the code snippet can be obtained from your Downstream settings page. You may use the default links we have provided or create your own by saving a saved search. To learn more about iframes you can visit http://www.w3schools.com/html/html_iframe.asp
Here are some walkthroughs from popular website providers if you are adding this IFrame yourself
https://support.wix.com/en/article/editor-x-adding-an-html-iframe-element
https://blog.hubspot.com/website/what-is-an-iframe