html meta refresh
<meta http-equiv="refresh" content="3; URL=http://www.example.com/">
reload tab using meta
<meta http-equiv="refresh" content="5">
html refresh
<div> <small>(last updated {{time}})</small> <p>USD: {{usd}}</p> <p>GBP: {{gbp}}</p> <p>EUR: {{eur}}</p> </div>
Source: blog.devgenius.io