diff --git a/test.py b/test.py
new file mode 100755
index 0000000..5b4a630
--- /dev/null
+++ b/test.py
@@ -0,0 +1,99 @@
+#! /usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from urllib.parse import urlparse, parse_qsl, urlencode, urlunparse
+import requests
+
+def deredir_url(url):
+    """
+    Given a URL, return the URL that the page really downloads from
+    :param url: url to be de-redirected
+    :return: direct url
+    """
+
+    ret = None
+    try:
+        # Download the page
+        ret = requests.get(url, timeout=5)
+    except:
+        # If anything goes wrong keep the URL intact
+        return url
+
+    # Return the URL that the page was downloaded from
+    return ret.url
+
+def _remove_tracker_params(query_str):
+    """
+    private function
+    Given a query string from a URL, strip out the known trackers
+    :param query_str: query to be cleaned
+    :return: query cleaned
+    """
+    # Avalaible URL tracking parameters :
+    # UTM tags by Google Ads, M$ Ads, ...
+    # tag by TikTok
+    # tags by Snapchat
+    # tags by Facebook
+    params_to_remove = [
+        "utm_source", "utm_medium", "utm_campaign", "utm_term", "utm_content",
+        "mkt_tok",
+        "campaign_name", "ad_set_name", "campaign_id", "ad_set_id",
+        "media", "interest_group_name",
+        "xtor"
+    ]
+    query_to_clean = dict(parse_qsl(query_str, keep_blank_values=True))
+    query_cleaned = [(k, v) for k, v in query_to_clean.items() if not k in params_to_remove]
+    return urlencode(query_cleaned, safe='#', doseq=True)
+
+
+def _remove_trackers_fragment(fragment_str):
+    """
+    private function
+    Given a fragment string from a URL, strip out the known trackers
+    :param query_str: fragment to be cleaned
+    :return: cleaned fragment
+    """
+ 
+    # Not implemented
+    # Unclear what, if anything, can be done
+    # Need better understanding of fragment-based tracking
+    # https://builtvisible.com/one-weird-trick-to-avoid-utm-parameters/
+
+    return fragment_str
+
+
+def clean_url(dirty_url):
+    """
+    Given a URL, return it with the UTM parameters removed from query and fragment
+    :param dirty_url: url to be cleaned
+    :return: url cleaned
+    >>> clean_url('https://example.com/video/this-aerial-ropeway?utm_source=Twitter&utm_medium=video&utm_campaign=organic&utm_content=Nov13&a=aaa&b=1#mkt_tok=tik&mkt_tik=tok')
+    'https://example.com/video/this-aerial-ropeway?a=aaa&b=1#mkt_tik=tok'
+    """
+
+    url_parsed = urlparse(dirty_url, allow_fragments=False)
+
+    cleaned_url = urlunparse([
+        url_parsed.scheme,
+        url_parsed.netloc,
+        url_parsed.path,
+        url_parsed.params,
+        _remove_tracker_params(url_parsed.query),
+        _remove_trackers_fragment(url_parsed.fragment)
+    ])
+
+    return cleaned_url
+
+def main():
+    # url = 'https://example.com/video/this-aerial-ropeway?utm_source=Twitter&utm_medium=video&utm_campaign=organic&utm_content=Nov13&a=aaa&b=1#mkt_tok=tik&mkt_tik=tok'
+    # url = "https://docs.helix-editor.com/keymap.html#movement"
+    # url = "https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7071508/#sec1-nutrients-12-00530title"
+    # url = "https://uscode.house.gov/view.xhtml?req=granuleid:USC-prelim-title42-section12208&num=0&edition=prelim"
+    url = "https://shorturl.at/qwP38"
+    print('Orig: ' + url)
+    direct_url = deredir_url(url)
+    print('dir : ' + direct_url)
+    print('to  : ' + clean_url(direct_url))
+
+if __name__=="__main__":
+    main()
diff --git a/twoot.py b/twoot.py
index f98d9cb..03892a5 100755
--- a/twoot.py
+++ b/twoot.py
@@ -178,6 +178,7 @@ def process_media_body(tt_iter, remove_redir, remove_trackers):
     Receives an iterator over all the elements contained in the tweet-text container.
     Processes them to make them suitable for posting on Mastodon
     :param tt_iter: iterator over the HTML elements in the text of the tweet
+    :param remove_redir: bool to indicate if redirections should be removed
     :param remove_trackers: bool to indicate if trackers should be removed
     :return:        cleaned up text of the tweet
     """