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== Security Check ==
Instantly check your site's security grade at https://www.ssllabs.com/ssltest/analyze.html (you can also append the domain name like so: ?d=equality-tech.com)
=== Checking Ciphers ===
You can use nmap to port scan a host (Do NOT do this on hosts you don't control... it's like poking a hornets nest, you're not sure what's going to happen next but it could be bad). Use this particular invocation to show the SSL ciphers in use on your host. The description below is from <code>/usr/share/nmap/scripts/ssl-enum-ciphers.nse</code>)
This script repeatedly initiates SSL/TLS connections, each time trying a new
cipher or compressor while recording whether a host accepts or rejects it. The
end result is a list of all the ciphers and compressors that a server accepts.
Each cipher is shown with a strength rating: one of <code>strong</code>,
<code>weak</code>, or <code>unknown strength</code>. The output line
beginning with <code>Least strength</code> shows the strength of the
weakest cipher offered. If you are auditing for weak ciphers, you would
want to look more closely at any port where <code>Least strength</code>
is not <code>strong</code>. The cipher strength database is in the file
<code>nselib/data/ssl-ciphers</code>, or you can use a different file
through the script argument
<code>ssl-enum-ciphers.rankedcipherlist</code>.
SSLv3/TLSv1 requires more effort to determine which ciphers and compression
methods a server supports than SSLv2. A client lists the ciphers and compressors
that it is capable of supporting, and the server will respond with a single
cipher and compressor chosen, or a rejection notice.
This script is intrusive since it must initiate many connections to a server,
and therefore is quite noisy.
<source lang="bash">
nmap --script +ssl-enum-ciphers example.com
</source>
== Let's Encrypt ==