Posts: 3,621
Name: Thierry
Location: I'm the uber Spaminator !
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Or maybe he is talking about the HTTP headers, sent and received before the content of the page.
Those headers can be originated from 2 sources:
1) Your browser
2) The web server
When coming from your browser, it indicates to the web server what action you are trying to perform.
They can be like this:
Quote:
GET /search?p=webmaster-talk.com&bwm=p&bwms=p&fr=moz2&fr2=seo-rd-se HTTP/1.1
Host: siteexplorer.search.yahoo.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3
Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Connection: keep-alive
Cookie: B=6hehn092rsndu&b=3&s=4h
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This is the request originating from my browser to the thread.
And below is the answer of the server:
Quote:
HTTP/1.x 200 OK
Date: Mon, 09 Apr 2007 20:36:02 GMT
P3P: policyref="http://p3p.yahoo.com/w3c/p3p.xml", CP="CAO DSP COR CUR ADM DEV TAI PSA PSD IVAi IVDi CONi TELo OTPi OUR DELi SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA POL HEA PRE GOV"
Cache-Control: private
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html; charset=UTF-8
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They can be variations in it, inthe case that there is POST form submission, for exemple.
But they mostly are for the server only, and you should not need to worry about these.
The only time I had to monitor them, was to debug an extremfully awful web app that had strange behaviour.
If you are curious, or interesed, the output of the header can be easily catched with the "live http headers" extention: http://livehttpheaders.mozdev.org/installation.html
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