check internet [How to 100% check internet availability](http://answers.unity3d.com/questions/567497/how-to-100-check-internet-availability.html)

readme.md

How to 100% check internet availability

getHtmlFromUrl.cs

 using System.Net;
 public string GetHtmlFromUri(string resource)
 {
     string html = string.Empty;
     HttpWebRequest req = (HttpWebRequest)WebRequest.Create(resource);
     try
     {
         using (HttpWebResponse resp = (HttpWebResponse)req.GetResponse())
         {
             bool isSuccess = (int)resp.StatusCode < 299 && (int)resp.StatusCode >= 200;
             if (isSuccess)
             {
                 using (StreamReader reader = new StreamReader(resp.GetResponseStream()))
                 {
                     //We are limiting the array to 80 so we don't have
                     //to parse the entire html document feel free to 
                     //adjust (probably stay under 300)
                     char[] cs = new char[80];
                     reader.Read(cs, 0, cs.Length);
                     foreach(char ch in cs)
                     {
                         html +=ch;
                     }
                 }
             }
         }
     }
     catch
     {
         return "";
     }
     return html;
 }

use it .cs

     using System.Net;
     void Start()
     {
         string HtmlText = GetHtmlFromUri("http://google.com");
         if(HtmlText == "")
         {
             //No connection
         }
         else if(!HtmlText.Contains("schema.org/WebPage"))
         {
             //Redirecting since the beginning of googles html contains that 
             //phrase and it was not found
         }
         else
         {
             //success
         }
     }