Crawling an .net site with subdomain

Question

I am trying to crawl a .net site with php curl. The site that i am trying to crawl is

http://waltham.patriotproperties.com

i am able to crawl the site.

But when i am trying to crawl internal pages like

http://waltham.patriotproperties.com/about.asp

or any other page inside that sub-domain it gives me an error as follows

The page cannot be displayed because an internal server error has occurred.1

The code that i am using is as bellow

$ch = curl_init();
$urlLogin   =   "http://www.waltham.patriotproperties.com";
curl_setopt($ch, CURLOPT_URL, $urlLogin);
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookie.txt");
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookie.txt");
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);

//curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); 

$data = curl_exec($ch);
echo $data; 

The code works for

http://waltham.patriotproperties.com/

but does not work for

http://waltham.patriotproperties.com/search.asp
http://waltham.patriotproperties.com/summary.asp

ie any url within this sub domain. The error that i get with url inside the sub-domain is

HTTP/1.1 500 Internal Server Error
Content-Type: text/html
Server: Microsoft-IIS/7.5
Date: Wed, 05 Jun 2013 16:33:57 GMT
Content-Length: 75 

Answer 1

You're starting out at:

$urlLogin   =   "http://www.waltham.patriotproperties.com";

But the link for the search page is at:

http://waltham.patriotproperties.com/search.asp

If you surf to that URL, you'll see the content; if you add the www. to the start of the URL, it works.

Editted to add - this becomes a lot easier if they have an API you can use.