diff --git a/waybackpy/wrapper.py b/waybackpy/wrapper.py
index 8fa64ac..c33ec40 100644
--- a/waybackpy/wrapper.py
+++ b/waybackpy/wrapper.py
@@ -16,7 +16,7 @@ else:  # For python2.x
 default_UA = "waybackpy python package - https://github.com/akamhy/waybackpy"
 
 
-def archive_url_parser(header):
+def _archive_url_parser(header):
     """Parse out the archive from header."""
     # Regex1
     arch = re.search(
@@ -36,64 +36,64 @@ def archive_url_parser(header):
     )
 
 
+def _wayback_timestamp(**kwargs):
+    """Return a formatted timestamp."""
+    return (
+        str(kwargs["year"])
+        + str(kwargs["month"]).zfill(2)
+        + str(kwargs["day"]).zfill(2)
+        + str(kwargs["hour"]).zfill(2)
+        + str(kwargs["minute"]).zfill(2)
+    )
+
+
 class Url:
     """waybackpy Url object"""
 
     def __init__(self, url, user_agent=default_UA):
         self.url = url
         self.user_agent = user_agent
-        self.url_check()  # checks url validity on init.
+        self._url_check()  # checks url validity on init.
 
     def __repr__(self):
         return "waybackpy.Url(url=%s, user_agent=%s)" % (self.url, self.user_agent)
 
     def __str__(self):
-        return "%s" % self.clean_url()
+        return "%s" % self._clean_url()
 
     def __len__(self):
-        return len(self.clean_url())
+        return len(self._clean_url())
 
-    def url_check(self):
+    def _url_check(self):
         """Check for common URL problems."""
         if "." not in self.url:
             raise URLError("'%s' is not a vaild URL." % self.url)
         return True
 
-    def clean_url(self):
+    def _clean_url(self):
         """Fix the URL, if possible."""
         return str(self.url).strip().replace(" ", "_")
 
-    def wayback_timestamp(self, **kwargs):
-        """Return a formatted timestamp."""
-        return (
-            str(kwargs["year"])
-            + str(kwargs["month"]).zfill(2)
-            + str(kwargs["day"]).zfill(2)
-            + str(kwargs["hour"]).zfill(2)
-            + str(kwargs["minute"]).zfill(2)
-        )
-
     def save(self):
         """Create a new Wayback Machine archive for this URL."""
-        request_url = "https://web.archive.org/save/" + self.clean_url()
+        request_url = "https://web.archive.org/save/" + self._clean_url()
         hdr = {"User-Agent": "%s" % self.user_agent}  # nosec
         req = Request(request_url, headers=hdr)  # nosec
-        header = self.get_response(req).headers
-        return "https://" + archive_url_parser(header)
+        header = self._get_response(req).headers
+        return "https://" + _archive_url_parser(header)
 
-    def get(self, url=None, user_agent=None, encoding=None):
+    def _get(self, url=None, user_agent=None, encoding=None):
         """Return the source code of the supplied URL.
         If encoding is not supplied, it is auto-detected from the response.
         """
-
         if not url:
-            url = self.clean_url()
+            url = self._clean_url()
         if not user_agent:
             user_agent = self.user_agent
 
         hdr = {"User-Agent": "%s" % user_agent}
         req = Request(url, headers=hdr)  # nosec
-        response = self.get_response(req)
+        response = self._get_response(req)
         if not encoding:
             try:
                 encoding = response.headers["content-type"].split("charset=")[-1]
@@ -101,7 +101,7 @@ class Url:
                 encoding = "UTF-8"
         return response.read().decode(encoding.replace("text/html", "UTF-8", 1))
 
-    def get_response(self, req):
+    def _get_response(self, req):
         """Get response for the supplied request."""
         try:
             response = urlopen(req)  # nosec
@@ -123,21 +123,21 @@ class Url:
         day = kwargs.get("day", datetime.utcnow().strftime("%d"))
         hour = kwargs.get("hour", datetime.utcnow().strftime("%H"))
         minute = kwargs.get("minute", datetime.utcnow().strftime("%M"))
-        timestamp = self.wayback_timestamp(
+        timestamp = _wayback_timestamp(
             year=year, month=month, day=day, hour=hour, minute=minute
         )
         request_url = "https://archive.org/wayback/available?url=%s&timestamp=%s" % (
-            self.clean_url(),
+            self._clean_url(),
             str(timestamp),
         )
         hdr = {"User-Agent": "%s" % self.user_agent}
         req = Request(request_url, headers=hdr)  # nosec
-        response = self.get_response(req)
+        response = self._get_response(req)
         data = json.loads(response.read().decode("UTF-8"))
         if not data["archived_snapshots"]:
             raise WaybackError(
                 "'%s' is not yet archived. Use wayback.Url(url, user_agent).save() "
-                "to create a new archive." % self.clean_url()
+                "to create a new archive." % self._clean_url()
             )
         archive_url = data["archived_snapshots"]["closest"]["url"]
         # wayback machine returns http sometimes, idk why? But they support https
@@ -163,9 +163,9 @@ class Url:
         hdr = {"User-Agent": "%s" % self.user_agent}
         request_url = (
             "https://web.archive.org/cdx/search/cdx?url=%s&output=json&fl=statuscode"
-            % self.clean_url()
+            % self._clean_url()
         )
         req = Request(request_url, headers=hdr)  # nosec
-        response = self.get_response(req)
+        response = self._get_response(req)
         # Most efficient method to count number of archives (yet)
         return str(response.read()).count(",")