Web Proxy Auto-Discovery

The Web Proxy Auto-Discovery (WPAD) Protocol is a method used by clients to locate the URL of a Proxy auto-config (PAC) configuration file using DHCP and/or DNS discovery methods.

While greatly simplifying configuration of one organisation's web browsers, the WPAD protocol can open doors for attackers to change what appears on a user's browser.

This site exists only as a security measure, to prevent WPAD DNS queries for this domain or it's subdomains from leaking to higher level domains.
It configures browsers to contact websites directly, without using a (possibly malicious) proxy.

Files served here:

• wpad.dat for DNS lookups - the reason for this site - served with MIME type application/x-ns-proxy-autoconfig
• Copy in wpad.da for broken Internet Explorer version 6.0.2900.2180.xpsp_sp2_rtm
• Copy in proxy.pac - traditional file name for DHCP configurations

Our very simple Proxy auto-config (PAC) JavaScript function:

// Legacy
function FindProxyForURL(url, host)
{
  return "DIRECT";
}
// IPv6-Aware
function FindProxyForURLEx(url, host)
{
  return "DIRECT";
}