AppEngine Estimated Request CPM

Posted on 24 April 2010, 12:33 pm, by klenwell, under App Engine.

Playing with Firefox Live HTTP Headers and Google’s App Engine, I just noticed the header X-AppEngine-Estimated-CPM-US-Dollars.

An example:
HTTP/1.1 200 OK
Content-Type: text/html; charset=utf-8
Cache-Control: no-cache
Expires: Fri, 01 Jan 1990 00:00:00 GMT
Content-Encoding: gzip
X-AppEngine-Estimated-CPM-US-Dollars: $0.000164
X-AppEngine-Resource-Usage: ms=11 cpu_ms=0 api_cpu_ms=0
Date: Sat, 24 Apr 2010 20:28:51 GMT
Server: Google Frontend
Content-Length: 299

Very interesting. I have not seen this mentioned before. But apparently it’s been around for a while.

One Comment

  1. klenwell says:
    25 April 2010 at 11:14 am

    A little more documentation:

    http://code.google.com/appengine/docs/python/runtime.html#Responses

    Headers only appear when logged in as admin.

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