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$ :| openssl s_client -connect shiken.or.jp:443 -servername shiken.or.jp > /dev/null
depth=0 C = JP, ST = Tokyo, L = None, O = None, OU = web, CN = localhost
verify error:num=18:self-signed certificate
verify return:1
depth=0 C = JP, ST = Tokyo, L = None, O = None, OU = web, CN = localhost
verify return:1
DONE

ほむ (www.shiken.or.jpはちゃんとしてるみたい)