problem with html validator

The URL http://aerobaticsweb.org/cgi-bin/countries_test.pl validates
OK, even though it is missing </head<body>

Cheers, Günther
______________________
Dr. Günther Eichhorn
geichhorn2000@gmail.com
http://guenther-eichhorn.com

Received on Monday, 7 October 2019 22:05:11 UTC