Maybe you can add HTTP2/SPDY detection too. BTW your HSTS test does not verify if the format/syntax is correct.

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These are all good but I would include the following:

Qualys SSL Server Test - The first site I use.

testssl.sh - for behind the fireware testing

https://tls.imirhil.fr/ - this one is nice because it shows the ciphers used/avail broken down by TLS version. I have not seen any other site do this.

Thanks for these! I like that yours covered a lot more than the one OP posted.

Thanks, glad to hear it!

HTTPSecurityReport is great! Thank you!