You can list all of your apache/httpd vhosts with this command.
# normal
httpd -S | rg '^.*namevhost (\S+) \(.*' --replace '$1' | sort -u
# with counter
httpd -S | rg '^.*namevhost (\S+) \(.*' --replace '$1' | sort | uniq -c
You need to install ripgrep or substitute it with sed.
Other useful httpd commands
Show all included configuration files.
httpd -t -D DUMP_INCLUDES
Show all loaded modules.
httpd -M
Run syntax check for config files.
httpd -t
Syntax OK