https://www.varnish.org/docs/tutorials/tags/synth/Recent content in Synth on Varnish CacheHugoen-usMon, 13 Sep 2021 00:00:00 +0000https://www.varnish.org/docs/tutorials/redirect/Mon, 13 Sep 2021 00:00:00 +0000https://www.varnish.org/docs/tutorials/redirect/<p>Varnish can perform HTTP redirections by returning a <em>synthetic</em> <code>HTTP 301</code> response containing a <code>Location</code> header with the redirection endpoint.</p> <p>Synthetic responses are triggered by a <code>return (synth())</code> statement called from a client-side VCL subroutine. This also requires extending the <code>vcl_synth</code> logic and adding the necessary redirection logic.</p> <h2 id="http-to-https-redirections">HTTP to HTTPS redirections</h2> <p>One of the most common types of HTTP redirection is HTTP to HTTPS.</p> <p>Here&rsquo;s an example where an HTTP request is redirected to its HTTPS equivalent:</p>