title: certbot using weak diffie hellman encryption
body: <p>I was reading here</p>
  
  <p><a href="https://weakdh.org/" rel="nofollow noreferrer">https://weakdh.org/</a></p>
  
  <p>If I verify security on</p>
  
  <p><a href="https://www.ssllabs.com/ssltest/analyze.html" rel="nofollow noreferrer">https://www.ssllabs.com/ssltest/analyze.html</a></p>
  
  <p>of one of my sites using <a href="http://certbot.eff.org" rel="nofollow noreferrer">certbot</a> I get rated B because of that</p>
  
  <p><a href="https://i.stack.imgur.com/437fC.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/437fC.png" alt="enter image description here"></a></p>
  
  <p>is there a solution?</p>
  
  <p>certbot basically is the implementation of <a href="https://letsencrypt.org/" rel="nofollow noreferrer">https://letsencrypt.org/</a> for many systems.</p>