Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

When I check pages for broken links using Xenu's Link Sleuth it usefully lists information about the web server, OS and PHP version
e.g.

Apache/2.2.11 (Unix) mod_ssl/2.2.11 OpenSSL/0.9.8j PHP5.2.9

Is there a simple way to extract similar information from the browser when viewing a page e.g. by a Javascript snippet/bookmarklet?

Update
The server information is part of the HTTP response header which is not accessible to Javascript. So a Javascript/bookmarklet solution would not be directly possible (though it could do something like sending the page URL to a site like Arjan's below).

share|improve this question

2 Answers 2

up vote 2 down vote accepted

The Web Developer toolbar for Firefox has among its many options a way to view page response headers. (Information | View Response Headers)

share|improve this answer
    
Aha! I already have the Web Dev toolbar installed but hadn't noticed that menu item. Thanks. –  pelms Nov 18 '09 at 17:15
    
Always happy to help. –  Al E. Nov 18 '09 at 18:28
    
Good answer, but it won't show the operating system (unless the web server includes that), does it? –  Arjan Nov 18 '09 at 18:39
    
Probably. It might require some inference. superuser.com returns "Server: Microsoft-IIS/7.0" as one of the values. IIS 7 implies Windows Server 2008, does it not? –  Al E. Nov 18 '09 at 19:15
    
Well, there's more than one flavour of Windows ;-) And for some installations the response headers just return "Apache" (like for rubyforge.org) or "nginx" (like for gravatar.com). (But I guess the question asker doesn't really care about that; using the Developer Toolbar surely is an easy way to get some information. And neither the response headers nor Netcraft can figger out what twitter.com is using...) –  Arjan Nov 18 '09 at 20:48

The information you mention seems the same as Netcraft's "What's that site running" provides, and they actually have a toolbar (which I've never used). Still note that this information is not by definition The Truth; a web server can report anything it likes.

Also, it's just never as complete as the real story.

I didn't know IIS could run on Linux? Ah, Jeff says some parts of SO are Linux, like the load balancer (HAProxy).

share|improve this answer
    
Re: stackoverflow.com. Strange, the header just reports 'Microsoft-IIS/7.0'. I wonder where Netcraft gets the OS from. Is this a virtual machine thing??? –  pelms Nov 18 '09 at 17:26
    
Ah, just seen your other link re. OS detection... –  pelms Nov 18 '09 at 17:28

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.