diff --git a/googletrans/client.py b/googletrans/client.py
index da48fb2..da2ad16 100644
--- a/googletrans/client.py
+++ b/googletrans/client.py
@@ -4,23 +4,17 @@ A Translation module.
 
 You can translate text using this module.
 """
-import re
 import requests
-import sys
-from collections import namedtuple
-from future.moves.urllib.parse import quote
 
-from googletrans import __version__
-from googletrans import urls
+from googletrans import urls, utils
 from googletrans.compat import PY3
+from googletrans.compat import unicode
 from googletrans.gtoken import TokenAcquirer
-from googletrans.utils import format_json
 from googletrans.constants import DEFAULT_USER_AGENT, LANGUAGES, SPECIAL_CASES
 from googletrans.models import Translated, Detected
 
 
-EXCLUDES = ['en', 'ca', 'fr']
-RE_SRC = re.compile(',\[\["([\w]{2})"\]')
+EXCLUDES = ('en', 'ca', 'fr')
 
 
 class Translator(object):
@@ -39,6 +33,27 @@ class Translator(object):
         except ImportError:  # pragma: nocover
             pass
 
+    def _translate(self, text, dest='en', src='auto'):
+        if src != 'auto' and src not in LANGUAGES.keys() and src in SPECIAL_CASES.keys():
+            src = SPECIAL_CASES[src]
+        elif src != 'auto' and src not in LANGUAGES.keys():
+            raise ValueError('invalid source language')
+
+        if dest not in LANGUAGES.keys() and dest in SPECIAL_CASES.keys():
+            dest = SPECIAL_CASES[dest]
+        elif dest not in LANGUAGES.keys():
+            raise ValueError('invalid destination language')
+
+        if not PY3 and isinstance(text, str):  # pragma: nocover
+            text = text.decode('utf-8')
+
+        token = self.token_acquirer.do(text)
+        params = utils.build_params(query=text, src=src, dest=dest, token=token)
+        r = self.session.get(urls.TRANSLATE, params=params)
+
+        data = utils.format_json(r.text)
+        return data
+
     def translate(self, text, dest='en', src='auto'):
         """
         Translate the passed text into destination language.
@@ -75,30 +90,8 @@ class Translator(object):
                 result.append(translated)
             return result
 
-        if src != 'auto' and src not in LANGUAGES.keys() and src in SPECIAL_CASES.keys():
-            src = SPECIAL_CASES[src]
-        elif src != 'auto' and src not in LANGUAGES.keys():
-            raise ValueError('invalid source language')
-
-        if dest not in LANGUAGES.keys() and dest in SPECIAL_CASES.keys():
-            dest = SPECIAL_CASES[dest]
-        elif dest not in LANGUAGES.keys():
-            raise ValueError('invalid destination language')
-
-        result = ''
         origin = text
-        token = self.token_acquirer.do(text)
-        text = quote(text)
-        url = urls.TRANSLATE.format(query=text, src=src, dest=dest, token=token)
-        r = self.session.get(url)
-
-        """
-        Response Sample (20150605)
-        $ ./translate "republique" -d ko
-
-        [[["공화국","republique"],[,,"gonghwagug"]],,"fr",,,[["republique",1,[["공화국",1000,true,false],["공화국의",0,true,false],["공화국에",0,true,false],["공화국에서",0,true,false]],[[0,10]],"republique",0,1]],0.94949496,,[["fr"],,[0.94949496]],,,[["명사",[[["communauté","démocratie"],""]],"république"]]]
-        """
-        data = format_json(r.text)
+        data = self._translate(text, dest, src)
 
         # this code will be updated when the format is changed.
         translated = data[0][0][0]
@@ -107,13 +100,13 @@ class Translator(object):
         # src passed is equal to auto.
         try:
             src = data[-1][0][0]
-        except:  # pragma: nocover
+        except Exception:  # pragma: nocover
             pass
 
         pron = origin
         try:
             pron = data[0][1][-1]
-        except:  # pragma: nocover
+        except Exception:  # pragma: nocover
             pass
         if not PY3 and isinstance(pron, unicode) and isinstance(origin, str):  # pragma: nocover
             origin = origin.decode('utf-8')
@@ -122,13 +115,16 @@ class Translator(object):
 
         # for python 2.x compatbillity
         if not PY3:  # pragma: nocover
-            if isinstance(src, str): src = src.decode('utf-8')
-            if isinstance(dest, str): dest = dest.decode('utf-8')
-            if isinstance(translated, str): translated = translated.decode('utf-8')
+            if isinstance(src, str):
+                src = src.decode('utf-8')
+            if isinstance(dest, str):
+                dest = dest.decode('utf-8')
+            if isinstance(translated, str):
+                translated = translated.decode('utf-8')
 
         # put final values into a new Translated object
         result = Translated(src=src, dest=dest, origin=origin,
-            text=translated, pronunciation=pron)
+                            text=translated, pronunciation=pron)
 
         return result
 
@@ -168,23 +164,17 @@ class Translator(object):
                 result.append(lang)
             return result
 
-        result = ''
-        origin = text
-        token = self.token_acquirer.do(text)
-        text = quote(text)
-        url = urls.DETECT.format(query=text, token=token)
-        r = self.session.get(url)
-        data = format_json(r.text)
+        data = self._translate(text, dest='en', src='auto')
 
         # actual source language that will be recognized by Google Translator when the
         # src passed is equal to auto.
         src = ''
         confidence = 0.0
         try:
-            src = ''.join(data[-1][0])
-            confidence = data[-1][-1][0]
-        except:  # pragma: nocover
+            src = ''.join(data[8][0])
+            confidence = data[8][-2][0]
+        except Exception:  # pragma: nocover
             pass
         result = Detected(lang=src, confidence=confidence)
 
-        return result
\ No newline at end of file
+        return result
diff --git a/googletrans/urls.py b/googletrans/urls.py
index 1094e3e..982c673 100644
--- a/googletrans/urls.py
+++ b/googletrans/urls.py
@@ -3,5 +3,4 @@
 Predefined URLs used to make google translate requests.
 """
 BASE = 'https://translate.google.com'
-TRANSLATE = 'https://translate.google.com/translate_a/single?client=t&sl={src}&tl={dest}&hl={dest}&dt=at&dt=bd&dt=ex&dt=ld&dt=md&dt=qca&dt=rw&dt=rm&dt=ss&dt=t&ie=UTF-8&oe=UTF-8&tk={token}&q={query}'
-DETECT = 'https://translate.google.com/translate_a/single?client=t&sl=auto&tl=en&hl=en&dt=bd&ie=UTF-8&oe=UTF-8&tk={token}&q={query}'
\ No newline at end of file
+TRANSLATE = 'https://translate.google.com/translate_a/single'
diff --git a/googletrans/utils.py b/googletrans/utils.py
index b7c352d..dc315e3 100644
--- a/googletrans/utils.py
+++ b/googletrans/utils.py
@@ -1,9 +1,27 @@
 """A conversion module for googletrans"""
 from __future__ import print_function
 import re
-import traceback
 import json
 
+
+def build_params(query, src, dest, token):
+    params = {
+        'client': 't',
+        'sl': src,
+        'tl': dest,
+        'hl': dest,
+        'dt': ['at', 'bd', 'ex', 'ld', 'md', 'qca', 'rw', 'rm', 'ss', 't'],
+        'ie': 'UTF-8',
+        'oe': 'UTF-8',
+        'otf': 1,
+        'ssel': 0,
+        'tsel': 0,
+        'tk': token,
+        'q': query,
+    }
+    return params
+
+
 def format_json(original):
     # save state
     states = []
@@ -37,4 +55,4 @@ def format_json(original):
 def rshift(val, n):
     """python port for '>>>'(right shift with padding)
     """
-    return (val % 0x100000000) >> n
\ No newline at end of file
+    return (val % 0x100000000) >> n