title: Nagios returning OK with check_http and status 303
body: <p>Probably an easy question but search is not helping.</p>
  
  <pre><code># ../libexec/check_http -H google.co.uk
  </code></pre>
  
  <p>Provides:</p>
  
  <pre><code>HTTP OK: HTTP/1.1 301 Moved Permanently - 592 bytes in 0.153 second response time|time=0.152933s;;;0.000000 size=592B;;;0
  </code></pre>
  
  <p>But</p>
  
  <pre><code># ../libexec/check_http -H google.co.uk.thisisnotarealurl
  </code></pre>
  
  <p>Provides:</p>
  
  <pre><code>HTTP OK: HTTP/1.0 303 See Other - 212 bytes in 0.161 second response time|time=0.161133s;;;0.000000 size=212B;;;0
  </code></pre>
  
  <p>How can it be showing HTTP OK when the site doesn't exist?</p>
  
  <p>Nagios is showing the site is OK whether it exists or not, is this normal?</p>