Various URLS

• I suggest that you visit the certbot support forums at LetsEncrypt

  https://community.letsencrypt.org
  

  There is a wealth of experience and knowledge available, and an active community of support.

• The “acme.sh” script, central to this article, is available from Github

  https://acme.sh/
  

• You may find this site useful to be sure your DNSSEC is working:

  http://dnsviz.net/
  

• To verify the operation of your SSL installation, use:

  https://www.ssllabs.com/ssltest/
    and
  https://www.htbridge.com/ssl/