CODEWITHSUNDEEP
httphttp-headersweb-standards
akdom
akdom

Reputation: 33189

Where can I find a List of Standard HTTP Header Values?

I'm looking for all the current standard header values a web server would generally receive. An example would be things like "what will the header look like when coming from a Mac running OS X Leopard and Camino installed?" or "what will the header look like when coming from Fedora 9 running Firefox 3.0.1 versus SuSe running Konqueror?"

PConroy gave an example from JQuery tending towards what I'm looking for. What I want though are the actual example headers.

Upvotes: 6

Views: 7574

Answers (7)

Unicorn
Unicorn

Reputation: 1417

IANA keeps track of HTTP headers

IANA is responsible for maintaining many of the codes and numbers contained in a variety of Internet protocols, enumerated below. We provide this service in coordination with the Internet Engineering Task Force (IETF).

Which includes:

Message Headers

  • Permanent Message Header Field Names
  • Provisional Message Header Field Names

Here's the exhaustive list which was originally based on RFC 4229

Upvotes: 2

Andy Lester
Andy Lester

Reputation: 93795

The chipmunk book from O'Reilly is good as is Chris Shiflett's HTTP reference.

Oh, whoops, it's not a chipmunk. It's a thirteen-lined ground squirrel.

Upvotes: 0

Jay
Jay

Reputation: 42702

The list of HTTP headers is easily available on the W3 website:

PConroy also linked to the wikipedia page, which is more concise, and a little easier formatted:

However, the "User-Agent" header is a bad example, since there's no set response; the user-agent string is decided by the client so it can literally be anything. There's a very comprehensive List of User Agents available, but it's not necessarily going to cover any possible option, since even some toolbars and applications can modify the user-agent for Internet Explorer or other browsers.

Upvotes: 0

ConroyP
ConroyP

Reputation: 41956

There is no set-in-stone list of user agent values. You can find lengthy lists (such as this one used by the JQuery browser plugin).

Regarding other HTTP Headers, this wikipedia article is a good place to start.

Upvotes: 4

cdeszaq
cdeszaq

Reputation: 31300

For the user agent, a quick google search pulled up this site.

Upvotes: 1

dguaraglia
dguaraglia

Reputation: 6028

Did you try the RFC? It has all that information.

Actually, when searching for information on any protocol or standard, try to search for the RFC first.

Cheers.

Upvotes: 6

swilliams
swilliams

Reputation: 48940

With regards to user-agent, that is entirely up to the creator of the application. See this semi tongue-in-cheek history of user-agent. In summary, there really isn't a canonical set of values. Microsoft based user-agents may change based on software installed on the local machine (version of .NET framework, etc).

Upvotes: 4

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