If you are using cPanel, you will run into the following Templates in the Edit Zone Templates area.
simple
; cPanel %cpversion%; Zone file for %domain%
$TTL %ttl%
@ %nsttl% IN SOA %nameserver%. %rpemail%. (
%serial% ; serial, todays date+todays
3600 ; refresh, seconds
600 ; retry, seconds
604800 ; expire, seconds
600 ) ; minimum, seconds
%domain%. %nsttl% IN NS %nameserver%.
%domain%. %nsttl% IN NS %nameserver2%.
%domain%. %nsttl% IN NS %nameserver3%.
%domain%. %nsttl% IN NS %nameserver4%.
%nameserverentry%. IN A %nameservera%
%nameserverentry2%. IN A %nameservera2%
%nameserverentry3%. IN A %nameservera3%
%nameserverentry4%. IN A %nameservera4%
%domain%. IN A %ip%
%domain%. IN AAAA %ipv6%
%domain%. IN MX 0 %domain%.
standard
; cPanel %cpversion%; Zone file for %domain%
$TTL %ttl%
@ %nsttl% IN SOA %nameserver%. %rpemail%. (
%serial% ; serial, todays date+todays
3600 ; refresh, seconds
600 ; retry, seconds
604800 ; expire, seconds
600 ) ; minimum, seconds
%domain%. %nsttl% IN NS %nameserver%.
%domain%. %nsttl% IN NS %nameserver2%.
%domain%. %nsttl% IN NS %nameserver3%.
%domain%. %nsttl% IN NS %nameserver4%.
%nameserverentry%. IN A %nameservera%
%nameserverentry2%. IN A %nameservera2%
%nameserverentry3%. IN A %nameservera3%
%nameserverentry4%. IN A %nameservera4%
%domain%. IN A %ip%
%domain%. IN AAAA %ipv6%
%domain%. IN MX 0 %domain%.
mail IN CNAME %domain%.
www IN CNAME %domain%.
ftp IN CNAME %domain%.
standardvirtualftp
; cPanel %cpversion%; Zone file for %domain%
$TTL %ttl%
@ %nsttl% IN SOA %nameserver%. %rpemail%. (
%serial% ; serial, todays date+todays
3600 ; refresh, seconds
600 ; retry, seconds
604800 ; expire, seconds
600 ) ; minimum, seconds
%domain%. %nsttl% IN NS %nameserver%.
%domain%. %nsttl% IN NS %nameserver2%.
%domain%. %nsttl% IN NS %nameserver3%.
%domain%. %nsttl% IN NS %nameserver4%.
%nameserverentry%. IN A %nameservera%
%nameserverentry2%. IN A %nameservera2%
%nameserverentry3%. IN A %nameservera3%
%nameserverentry4%. IN A %nameservera4%
%domain%. IN A %ip%
%domain%. IN AAAA %ipv6%
%domain%. IN MX 0 %domain%.
mail IN CNAME %domain%.
www IN CNAME %domain%.
ftp IN A %ftpip%
ftp IN AAAA %ipv6%