How to add link auto-preview popups to WordPress?

Prerequisite: Sign-up to, add your website & get code snippet
For users. You need to have at least Business plan on to add code snippet can be installed on hosted version and self-hosted version. To install, you need to add code snippet in the the HTML of your website. You can add code snippets using WordPress plugins.
Step 1. Install and activate the free Insert Headers & Footer plugin or a similar plugin that allows you to add custom code snippet into the HTML code of your WordPress site.
Step 2. In WordPress dashboard go to My Site(s) → Settings → Insert Headers & Footers.
Step 3. Paste code snippet into the Scripts in the Footer box and click Save.

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