diff --git a/README.md b/README.md
index 3ff6732..7a8e881 100644
--- a/README.md
+++ b/README.md
@@ -199,6 +199,14 @@ If the value is present, it will also set the new value. If the value is `null`,
 
 The default value is `4096`.
 
+### fastimage.userAgent([userAgent])
+
+Gets or sets the User Agent String to send on outgoing requests.
+
+If the value is present, it will also set the new value. If the value is `null`, it will restore the default value.
+
+The default value is `4096`.
+
 ### fastimage.FastImageStream
 
 A image analysis stream.
diff --git a/docs/index.html b/docs/index.html
index 576b390..bcc13a8 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -149,6 +149,9 @@ <h3>fastimage.timeout([timeout])</h3><p>Gets or sets the maximum number of secon
 <h3>fastimage.threshold([threshold])</h3><p>Gets or sets the maximum number of bytes to read to attempt an identification before giving up and state that the source is not an image.</p>
 <p>If the value is present, it will also set the new value. If the value is <code>null</code>, it will restore the default value.</p>
 <p>The default value is <code>4096</code>.</p>
+<h3>fastimage.userAgent([userAgent])</h3><p>Gets or sets the User Agent String to send on outgoing requests.</p>
+<p>If the value is present, it will also set the new value. If the value is <code>null</code>, it will restore the default value.</p>
+<p>The default value is <code>4096</code>.</p>
 <h3>fastimage.FastImageStream</h3><p>A image analysis stream.</p>
 <p>Streams will emit the <code>size</code> and <code>type</code> if you only need those informations about the image.</p>
 <h3>fastimage.FastImageError</h3><p>This error will be returned as the first argument of the callbacks if anything goes wrong.</p>
@@ -179,7 +182,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/lib_core.js.html b/docs/lib_core.js.html
index 5830ba1..d30dde8 100644
--- a/docs/lib_core.js.html
+++ b/docs/lib_core.js.html
@@ -47,6 +47,13 @@ <h1 class="page-title">Source: lib/core.js</h1>
   var originalTimeout = 30000;
   var timeout = originalTimeout;
 
+  var originalUserAgent = "Fast Image - Node Image Lookup - https://www.npmjs.com/package/fastimage";
+  var userAgent = originalUserAgent;
+
+  // Polyfill for Node 0.10
+  if(typeof Promise === "undefined") // eslint-disable-line no-use-before-define
+    var Promise = require("promise");
+
   /**
    * Gets or sets the maximum number of bytes to read to attempt an identification before giving up and state that the source is not an image.
    *
@@ -59,8 +66,9 @@ <h1 class="page-title">Source: lib/core.js</h1>
       threshold = value;
     else if(value === null)
       threshold = originalThreshold;
+
     return threshold;
-  }
+  };
 
   /**
    * Gets or sets the maximum number of seconds to wait to connect to a host.
@@ -74,8 +82,25 @@ <h1 class="page-title">Source: lib/core.js</h1>
       timeout = value;
     else if(value === null)
       timeout = originalTimeout;
+
     return timeout;
-  }
+  };
+
+  /**
+   Gets or sets the user agent string to send when connecting to a host.
+   *
+   * @alias module:fastimage.userAget
+   * @param {string} [value] - The new value to set. Passing `null` will restore the default value (Fast Image - Node Image Lookup).
+   * @returns {number} The current value
+   */
+  var manageUserAgent = function(value){
+    if(typeof value === "string")
+      userAgent = value;
+    else if(value === null)
+      userAgent = originalUserAgent;
+
+    return userAgent;
+  };
 
   var identify = function(buffer, url, realUrl, size, time){
     var info = null;
@@ -171,37 +196,45 @@ <h1 class="page-title">Source: lib/core.js</h1>
     var realUrl = null;
     var unsupportedError = new errors.FastImageError("Unsupported image file.", {url: url, code: "UNSUPPORTED_TYPE"});
 
-    request({url: url, method: "GET", encoding: null, timeout: timeout}) // When a response is received, control the HTTP code. If is not in the 2xx range, return a error.
-      .on("response", function(response){
-        realUrl = response.request.uri.href;
-        size = parseFloat(response.headers["content-length"]);
-
-        if(response.statusCode / 100 !== 2){
-          this.abort();
-          callback(errors.handleNetworkError({code: "HTTP_ERROR", status: response.statusCode}, url));
-        }
-      }).on("data", function(chunk){
-        // Append the new data and try the identification again.
-        buffer = Buffer.concat([buffer, chunk]);
-        info = identify(buffer, url, realUrl, size, time);
-
-        // Informations found or threshold reached. End the transfer and call the callback.
-        if(info || buffer.length >= threshold){
-          this.abort();
-
-          if(info)
-            callback(null, info);
-          else
-            callback(unsupportedError);
-        }
-      }).on("error", function(error){
+    // When a response is received, control the HTTP code. If is not in the 2xx range, return a error.
+    request.get({
+      url: url,
+      encoding: null,
+      timeout: timeout,
+      headers: {
+        "user-agent": userAgent
+      }
+    })
+    .on("response", function(response){
+      realUrl = response.request.uri.href;
+      size = parseFloat(response.headers["content-length"]);
+
+      if(response.statusCode / 100 !== 2){
+        this.abort();
+        callback(errors.handleNetworkError({code: "HTTP_ERROR", status: response.statusCode}, url));
+      }
+    }).on("data", function(chunk){
+      // Append the new data and try the identification again.
+      buffer = Buffer.concat([buffer, chunk]);
+      info = identify(buffer, url, realUrl, size, time);
+
+      // Informations found or threshold reached. End the transfer and call the callback.
+      if(info || buffer.length >= threshold){
         this.abort();
-        callback(errors.handleNetworkError(error, url));
-      }).on("end", function(){
-        // The end of the transfer has been reached with no results. Return an error.
-        if(!this._aborted &amp;&amp; !info)
+
+        if(info)
+          callback(null, info);
+        else
           callback(unsupportedError);
-      });
+      }
+    }).on("error", function(error){
+      this.abort();
+      callback(errors.handleNetworkError(error, url));
+    }).on("end", function(){
+      // The end of the transfer has been reached with no results. Return an error.
+      if(!this._aborted &amp;&amp; !info)
+        callback(unsupportedError);
+    });
   };
 
   var performAnalysis = function(subject, callback){
@@ -225,6 +258,8 @@ <h1 class="page-title">Source: lib/core.js</h1>
 
     timeout: manageTimeout,
 
+    userAgent: manageUserAgent,
+
     performAnalysis: performAnalysis,
 
     /**
@@ -284,7 +319,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/lib_errors.js.html b/docs/lib_errors.js.html
index 538f07b..294706a 100644
--- a/docs/lib_errors.js.html
+++ b/docs/lib_errors.js.html
@@ -108,7 +108,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/lib_streams.js.html b/docs/lib_streams.js.html
index 11d7ab7..d104341 100644
--- a/docs/lib_streams.js.html
+++ b/docs/lib_streams.js.html
@@ -46,11 +46,20 @@ <h1 class="page-title">Source: lib/streams.js</h1>
    * @class module:fastimage.FastImageStream
    */
   var FastImageStream = function(){
+    var legacyNode = process.version.match(/v0\.10/);
     var options = arguments[arguments.length - 1] || {};
-    options.readableObjectMode = true;
+
+    // Enable ObjectMode for Node 0.12+ or io.js
+    if(!legacyNode)
+      options.readableObjectMode = true;
 
     Duplex.call(this, options);
-    this.pause();
+
+    // Enable ObjectMode for Node 0.10 or pause for the rest
+    if(legacyNode)
+      this._readableState.objectMode = true;
+    else
+      this.pause();
 
     if(arguments.length === 2)
       this.source = arguments[0];
@@ -86,7 +95,7 @@ <h1 class="page-title">Source: lib/streams.js</h1>
         // Push the data and close.
         this.push(this.info);
       }catch(e){
-        if(this.buffer.length > core.threshold)
+        if(this.buffer.length > core.threshold())
           this.end();
       }
 
@@ -129,7 +138,7 @@ <h1 class="page-title">Source: lib/streams.js</h1>
 
     _failAnalysis: function(){
       if(!this.info)
-        this.emit("error", this.error || new errors.FastImageError("Unsupported image.", {code: "UNSUPPORTED_TYPE"}));
+        this.emit("error", this.error || new errors.FastImageError("Unsupported image data.", {code: "UNSUPPORTED_TYPE"}));
     }
   });
 
@@ -173,7 +182,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/main.js.html b/docs/main.js.html
index c81b951..85798c7 100644
--- a/docs/main.js.html
+++ b/docs/main.js.html
@@ -48,6 +48,8 @@ <h1 class="page-title">Source: main.js</h1>
 
     threshold: core.threshold,
 
+    userAgent: core.userAgent,
+
     /**
      * Analyzes a source (a local path, a remote URL or a Buffer) and return the image informations.
      *
@@ -160,7 +162,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/module-fastimage.FastImageError.html b/docs/module-fastimage.FastImageError.html
index 24fafd8..93a6882 100644
--- a/docs/module-fastimage.FastImageError.html
+++ b/docs/module-fastimage.FastImageError.html
@@ -29,10 +29,7 @@ <h1 class="page-title">Class: FastImageError</h1>
 <header>
     
         <h2>
-            <span class="ancestors"><a href="module-fastimage.html">fastimage</a>.</span>
-        
-        FastImageError
-        </h2>
+            <span class="ancestors"><a href="module-fastimage.html">fastimage</a>.</span>FastImageError</h2>
         
     
 </header>
@@ -232,7 +229,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/module-fastimage.FastImageStream.html b/docs/module-fastimage.FastImageStream.html
index e762b12..19bfcfe 100644
--- a/docs/module-fastimage.FastImageStream.html
+++ b/docs/module-fastimage.FastImageStream.html
@@ -29,10 +29,7 @@ <h1 class="page-title">Class: FastImageStream</h1>
 <header>
     
         <h2>
-            <span class="ancestors"><a href="module-fastimage.html">fastimage</a>.</span>
-        
-        FastImageStream
-        </h2>
+            <span class="ancestors"><a href="module-fastimage.html">fastimage</a>.</span>FastImageStream</h2>
         
     
 </header>
@@ -157,7 +154,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/docs/module-fastimage.html b/docs/module-fastimage.html
index a5c7a16..036f735 100644
--- a/docs/module-fastimage.html
+++ b/docs/module-fastimage.html
@@ -328,7 +328,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line215">line 215</a>
+        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line250">line 250</a>
     </li></ul></dd>
     
 
@@ -562,7 +562,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="main.js.html">main.js</a>, <a href="main.js.html#line74">line 74</a>
+        <a href="main.js.html">main.js</a>, <a href="main.js.html#line76">line 76</a>
     </li></ul></dd>
     
 
@@ -762,7 +762,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="main.js.html">main.js</a>, <a href="main.js.html#line88">line 88</a>
+        <a href="main.js.html">main.js</a>, <a href="main.js.html#line90">line 90</a>
     </li></ul></dd>
     
 
@@ -966,7 +966,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="lib_streams.js.html">lib/streams.js</a>, <a href="lib_streams.js.html#line124">line 124</a>
+        <a href="lib_streams.js.html">lib/streams.js</a>, <a href="lib_streams.js.html#line133">line 133</a>
     </li></ul></dd>
     
 
@@ -1131,7 +1131,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line29">line 29</a>
+        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line36">line 36</a>
     </li></ul></dd>
     
 
@@ -1296,7 +1296,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line44">line 44</a>
+        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line52">line 52</a>
     </li></ul></dd>
     
 
@@ -1496,7 +1496,7 @@ <h5>Parameters:</h5>
     
     <dt class="tag-source">Source:</dt>
     <dd class="tag-source"><ul class="dummy"><li>
-        <a href="main.js.html">main.js</a>, <a href="main.js.html#line104">line 104</a>
+        <a href="main.js.html">main.js</a>, <a href="main.js.html#line106">line 106</a>
     </li></ul></dd>
     
 
@@ -1545,6 +1545,171 @@ <h5>Returns:</h5>
 
 
         
+            
+
+    
+
+    <h4 class="name" id=".userAget"><span class="type-signature">(static) </span>userAget<span class="signature">(value<span class="signature-attributes">opt</span>)</span><span class="type-signature"> &rarr; {number}</span></h4>
+
+    
+
+
+
+<div class="description">
+    <p>Gets or sets the user agent string to send when connecting to a host.</p>
+</div>
+
+
+
+
+
+
+
+
+
+    <h5>Parameters:</h5>
+    
+
+<table class="params">
+    <thead>
+    <tr>
+        
+        <th>Name</th>
+        
+
+        <th>Type</th>
+
+        
+        <th>Attributes</th>
+        
+
+        
+
+        <th class="last">Description</th>
+    </tr>
+    </thead>
+
+    <tbody>
+    
+
+        <tr>
+            
+                <td class="name"><code>value</code></td>
+            
+
+            <td class="type">
+            
+                
+<span class="param-type">string</span>
+
+
+            
+            </td>
+
+            
+                <td class="attributes">
+                
+                    &lt;optional><br>
+                
+
+                
+
+                
+                </td>
+            
+
+            
+
+            <td class="description last"><p>The new value to set. Passing <code>null</code> will restore the default value (Fast Image - Node Image Lookup).</p></td>
+        </tr>
+
+    
+    </tbody>
+</table>
+
+
+
+
+
+
+<dl class="details">
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+
+    
+    <dt class="tag-source">Source:</dt>
+    <dd class="tag-source"><ul class="dummy"><li>
+        <a href="lib_core.js.html">lib/core.js</a>, <a href="lib_core.js.html#line68">line 68</a>
+    </li></ul></dd>
+    
+
+    
+
+    
+
+    
+</dl>
+
+
+
+
+
+
+
+
+
+
+
+
+
+<h5>Returns:</h5>
+
+        
+<div class="param-desc">
+    <p>The current value</p>
+</div>
+
+
+
+<dl>
+    <dt>
+        Type
+    </dt>
+    <dd>
+        
+<span class="param-type">number</span>
+
+
+    </dd>
+</dl>
+
+    
+
+
+
+        
     
 
     
@@ -1566,7 +1731,7 @@ <h2><a href="index.html">Home</a></h2><h3>Modules</h3><ul><li><a href="module-fa
 <br class="clear">
 
 <footer>
-    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.3.0-beta2</a> on Sat Mar 28 2015 14:49:38 GMT-0700 (PDT)
+    Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.4.0</a> on Tue Feb 23 2016 12:36:13 GMT+0000 (GMT)
 </footer>
 
 <script> prettyPrint(); </script>
diff --git a/lib/core.js b/lib/core.js
index d45bdb1..3657d08 100644
--- a/lib/core.js
+++ b/lib/core.js
@@ -59,6 +59,22 @@ if(typeof Promise === "undefined")
     return timeout;
   };
 
+  /**
+   Gets or sets the user agent string to send when connecting to a host.
+   *
+   * @alias module:fastimage.userAget
+   * @param {string} [value] - The new value to set. Passing `null` will restore the default value (Fast Image - Node Image Lookup).
+   * @returns {number} The current value
+   */
+  var manageUserAgent = function(value){
+    if(typeof value === "string")
+      userAgent = value;
+    else if(value === null)
+      userAgent = originalUserAgent;
+
+    return userAgent;
+  };
+
   var identify = function(buffer, url, realUrl, size, time){
     var info = null;
     var elapsed = null;
@@ -155,10 +171,17 @@ if(typeof Promise === "undefined")
     var unsupportedError = new errors.FastImageError("Unsupported image file.", {url: url, code: "UNSUPPORTED_TYPE"});
 
     // When a response is received, control the HTTP code. If is not in the 2xx range, return a error.
-    request({url: url, method: "GET", encoding: null, timeout: timeout})
-      .on("response", function(response){
-        realUrl = response.request.uri.href;
-        size = parseFloat(response.headers["content-length"]);
+    request.get({
+      url: url,
+      encoding: null,
+      timeout: timeout,
+      headers: {
+        "user-agent": userAgent
+      }
+    })
+    .on("response", function(response){
+      realUrl = response.request.uri.href;
+      size = parseFloat(response.headers["content-length"]);
 
         if(response.statusCode / HTTP_RESPONSE_CLASS_FACTOR !== 2){
           this.abort();
@@ -171,9 +194,9 @@ if(typeof Promise === "undefined")
         buffer = Buffer.concat([buffer, chunk]);
         info = identify(buffer, url, realUrl, size, time);
 
-        // Informations found or threshold reached. End the transfer and call the callback.
-        if(info || buffer.length >= threshold){
-          this.abort();
+      // Informations found or threshold reached. End the transfer and call the callback.
+      if(info || buffer.length >= threshold){
+        this.abort();
 
           if(info)
             return callback(null, info);
@@ -218,6 +241,8 @@ if(typeof Promise === "undefined")
 
     timeout: manageTimeout,
 
+    userAgent: manageUserAgent,
+
     performAnalysis: performAnalysis,
 
     /**
diff --git a/main.js b/main.js
index 24bb402..02b7b1f 100644
--- a/main.js
+++ b/main.js
@@ -20,6 +20,8 @@
 
     threshold: core.threshold,
 
+    userAgent: core.userAgent,
+
     /**
      * Analyzes a source (a local path, a remote URL or a Buffer) and return the image informations.
      *
diff --git a/package.json b/package.json
index 4fd24cb..0072161 100644
--- a/package.json
+++ b/package.json
@@ -55,6 +55,7 @@
     "mocha": "~2.1.0",
     "mocha-lcov-reporter": "0.0.2",
     "sepia": "^2.0.1",
+    "sinon": "^1.17.3",
     "through": "^2.3.6"
   },
   "config": {
diff --git a/test/general.js b/test/general.js
index b7fbe60..28a7482 100644
--- a/test/general.js
+++ b/test/general.js
@@ -51,6 +51,17 @@
     });
   });
 
+  describe("user agent", function(){
+    it("should set and get the value", function(){
+      var defaultValue = "Fast Image - Node Image Lookup - https://www.npmjs.com/package/fastimage";
+      expect(fastimage.userAgent()).to.equal(defaultValue);
+      expect(fastimage.userAgent("new value")).to.equal("new value");
+      expect(fastimage.userAgent()).to.equal("new value");
+      expect(fastimage.userAgent(null)).to.equal(defaultValue);
+      expect(fastimage.userAgent()).to.equal(defaultValue);
+    });
+  });
+
   describe("using callbacks", function(){
     this.timeout(5000);
 
diff --git a/test/promises.js b/test/promises.js
index 31e05d5..e1fe584 100644
--- a/test/promises.js
+++ b/test/promises.js
@@ -8,6 +8,8 @@
 
   var expect = require("expect.js");
   var path = require("path");
+  var sinon = require("sinon");
+  var request = require("request");
 
   var fastimage = require("../main");
 
@@ -120,5 +122,61 @@
         });
       });
     });
+
+    describe("outgoing request", function(){
+      var waitForTestToCallRequest, defaultUserAgent;
+
+      beforeEach(function(){
+        defaultUserAgent = "Fast Image - Node Image Lookup - https://www.npmjs.com/package/fastimage";
+        waitForTestToCallRequest = new Promise(function (res) {
+          sinon.stub(request, "get", function (outgoingRequest) {
+            res(outgoingRequest);
+            var ret = {
+              on: function () {
+                return ret;
+              }
+            };
+            return ret;
+          });
+        });
+      });
+      afterEach(function(){
+        request.get.restore();
+      });
+
+      it("should contain a default user agent string", function (done) {
+        waitForTestToCallRequest.then(function (outgoingRequest) {
+          expect(outgoingRequest.headers["user-agent"]).to.be(defaultUserAgent);
+          done();
+        }).catch(done);
+
+        fastimage.info("http://example.com/");
+      });
+
+      it("should contain a default user agent string", function (done) {
+        var newUserAgentString = "Hello World!";
+
+        waitForTestToCallRequest.then(function (outgoingRequest) {
+          expect(outgoingRequest.headers["user-agent"]).to.be(newUserAgentString);
+          done();
+        }).catch(done);
+
+        fastimage.userAgent(newUserAgentString);
+        fastimage.info("http://example.com/");
+      });
+
+      it("should have a standard setter/getter for user agent string", function (done) {
+        waitForTestToCallRequest.then(function (outgoingRequest) {
+          expect(outgoingRequest.headers["user-agent"]).to.be(defaultUserAgent);
+          done();
+        }).catch(done);
+
+        fastimage.userAgent("this will never actually be used");
+        expect(fastimage.userAgent()).to.eql("this will never actually be used");
+        fastimage.userAgent(null);
+        expect(fastimage.userAgent()).to.eql(defaultUserAgent);
+        fastimage.info("http://example.com/");
+      });
+    });
   });
-})();
\ No newline at end of file
+})();