http-stats:
HTTP/1.1 Powered-By-ChinaCache header field

The Powered-By-ChinaCache field is NOT a standard HTTP header field and may not be supported by all clients.

If you ever wondered, ChinaCache is a leading content distribution network (CDN) service provider in China.

This header, vehicolated through squid, not only tells the world where the content is coming from, it also brings some (obscure) info with it.

What is sure is that there is no open standard on how to use this server header field. Probably it is there only for debugging purposes by the employees of ChinaCache.


Common Powered-By-ChinaCache header values:

The non-standard "Powered-By-ChinaCache" header is only sent by:

NOTE: this header may be sent directly by the server software or from some third party application running on that server.

Sample Powered-By-ChinaCache web server response:

HTTP/1.1 200 OK
Content-Type: text/html; charset=UTF-8
Content-Length: 7790
Powered-By-ChinaCache: CHN-CQ-3-352 MISS
Date: Fri, 30 Jul 2010 16:58:46 +0000

<!DOCTYPE html PUBLIC "-//W3C//DTD ...
...
...

Other common HTTP headers

Other less common headers