title: Disallow header page robots.txt
body: <p>I want to disallow header.php in robots.txt from being indexed.
  File url:</p>
  
  <pre><code>https://example.com/header.php
  </code></pre>
  
  <p>But I'm not sure what is correct:</p>
  
  <pre><code>Disallow: /header.php
  </code></pre>
  
  <p>or</p>
  
  <pre><code>Disallow: header.php
  </code></pre>