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Editorial Team
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Asked: 2026-05-27T19:17:32+00:00

I here want to call another website url, login into it, and use one

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I here want to call another website url, login into it, and use one of its function using my asp.net project. I’m working on a project in asp.net where my web based program will send sms to mobile phones. Since I don’t want to subscribe to any gateways or similar, I found this website:

http://sms80.com

Now what I want to do is, from my asp.net page I need to access this website, login and use its service but all this must be done hidden programatically in my asp.net page.

I somehow inspected that websites element such as login name textbox and password textbox. I am not trying to hacking but I just need know the process I do in that website( I login using my account, then write my message and write the mobile num and send) programaticallyin my asp.net.

I did some research and found out that I can send or pass values in url straight such as:

your_url.aspx?your_url_variable=" + @variable_from_form

but it doesn’t seem work. Is it any other way to do it?

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1 Answer

  1. Editorial Team

    If the other website doesn’t have an API loging into it programmatically is not a simple process.

    It requires a lot of exploratory work and analysis of how the website you’re trying to login works. The process consists of first determining what is being sent in the request/response communication post data with a tool such as Fiddler.

    Then, you need to construct a series of GETs and POSTs using either HttpWebRequest/HttpWebResponse classes or WebClient class so you can mimic the way the browser does it.

    An example would be:

    string url = "http://sms80.com";
HttpWebRequest http = (HttpWebRequest)WebRequest.Create(url);
http.CookieContainer = _cookieJar;
http.Connection = "Keep-alive";
http.Method = "POST";
http.ContentType = "application/x-www-form-urlencoded";
string postData="username=" + username + "&password=" + password;
byte[] dataBytes = UTF8Encoding.UTF8.GetBytes(postData);
http.ContentLength = dataBytes.Length;
Stream postStream = http.GetRequestStream();
postStream.Write(dataBytes, 0, dataBytes.Length);
postStream.Close();
// see if we're logged in
HttpWebResponse httpResponse = (HttpWebResponse)http.GetResponse();
// continue (read the response etc.)
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