Include the Jdenticon library somewhere on your page. Below is Jdenticon served from jsDelivr, but you can download and host it yourself as well.
<script src="https://email@example.com/dist/jdenticon.min.js" async integrity="sha384-yBhgDqxM50qJV5JPdayci8wCfooqvhFYbIKhv0hTtLvfeeyJMJCscRfFNKIxt43M" crossorigin="anonymous"> </script>
<svg> element where you want to render an identicon. Use the
data-jdenticon-value attribute to specify that an identicon should be rendered.
user127 below is just an example of a value.
<svg width="80" height="80" data-jdenticon-value="user127"></svg>
Refresh the page in your browser.