It looks like it's on in the httpd.conf:
<IfModule ssl_module>
# cipher and protocol directives can be set in WHM under 'Apache Configuration' -> 'Global Configuration'
SSLCipherSuite ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AE$
SSLProtocol All -SSLv2 -SSLv3
SSLPassPhraseDialog builtin
<IfModule socache_shmcb_module>
SSLUseStapling on
SSLStaplingCache shmcb:/etc/apache2/run/stapling_cache_shmcb(256000)
# Prevent browsers from failing if an OCSP server is temporarily broken.
SSLStaplingReturnResponderErrors off
SSLStaplingErrorCacheTimeout 60
SSLSessionCache shmcb:/etc/apache2/run/ssl_gcache_data_shmcb(1024000)
</IfModule>
<IfModule !socache_shmcb_module>
SSLSessionCache dbm:/etc/apache2/run/ssl_gcache_data_dbm
</IfModule>
SSLSessionCacheTimeout 300
Mutex file:/etc/apache2/run ssl-cache
SSLRandomSeed startup builtin
SSLRandomSeed connect builtin
# The Listen port can be updated using 'Tweak Settings' -> 'System',
# However, if you have any Apache Reserved IPs, then this Tweak setting will
# be ignored. Instead, each IP on your system (excluding Apache Reserved IPs)
# will be listed here.
Listen 0.0.0.0:443
Listen [::]:443
AddType application/x-x509-ca-cert .crt
AddType application/x-pkcs7-crl .crl
</IfModule>