Microsoft is having a rough couple weeks. First they shut down their tests that is causing fake referral data from being spewed out and now I am hearing reports that their HTTP headers are malformed.

A WebmasterWorld thread reports Microsoft is keep-alive and transfer-encoding the connection. Here is an export of the status:

HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
X-Powered-By: ASP.NET
P3P: CP=”NON UNI COM NAV STA LOC CURa DEVa PSAa PSDa OUR IND”, policyref=”http://privacy.msn.com/w3c/p3p.xml”
Vary: Accept-Encoding
Content-Encoding: gzip
Date: Sat, 02 May 2009 16:56:37 GMT
Transfer-Encoding: chunked
Connection: keep-alive, Transfer-Encoding
Cache-Control: private

Moderator, jdMorgan adds one more issue to the pack. He added that Microsoft’s Live Search headers have a missing value after the If-Modified-Since date.

Forum discussion at WebmasterWorld.