validator in http responce header

From: Prashant Desai <reach_prashant@dont-contact.us>
Date: Mon, 3 Apr 2000 12:55:22 +0530

dear friends
  
  what does it mean by presence of validator in httpd header
which header exactly it is

thanks prashant Desai
Received on Mon Apr 03 2000 - 01:36:56 MDT

This archive was generated by hypermail pre-2.1.9 : Tue Dec 09 2003 - 16:52:38 MST