diff --git a/add_isitdown.py b/add_isitdown.py
new file mode 100644
index 0000000..64ea915
--- /dev/null
+++ b/add_isitdown.py
@@ -0,0 +1,62 @@
+import sqlite3, sys, datetime, api_credentials, smtplib, os
+
+# Usage :
+# python3 add_isitdown.py -u <url> -e <email> -i <ip>
+
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+items = {"url": "", "email": "", "ip": "", "starttime": ""}
+
+def sendMail(url, email, code):
+    date = str(datetime.datetime.now())
+    login = api_credentials.creds["gmail"]["user"]
+    password = api_credentials.creds["gmail"]["password"]
+    mail = smtplib.SMTP('smtp.gmail.com', 587)
+    mail.ehlo()
+    mail.starttls()
+    subject = "EMWIU - "
+    content = "Bonjour !\n\n"
+    if (code == "new"):
+        subject += "Confirmation de votre inscription"
+        content += "Nous vous confirmons, de par ce mail, votre inscription a notre service. Nous surveillons des maintenant l'URL " + str(url) +  " !\n"
+    elif (code == "old"):
+        subject += "Vous etes deja inscrit..."
+        content += "Nous avons trouve dans notre base de donnee que vous avez deja demande a surveiller l'URL " + url + " !\n"
+        content += "Vous ne pouvez pas vous inscrire deux fois pour la meme URL. Desole !"
+    content += "\n\nCordialement,\nL'API EMWIU (Email Me When It's Up!) du site https://louis-vallat.xyz."
+    content += "\nMail genere le : " + date
+    message = 'Subject: {}\n\n{}'.format(subject, content)
+    mail.login(login, password)
+    mail.sendmail(login, email, message)
+    mail.quit()
+
+for i in range(len(sys.argv)):
+    if (sys.argv[i] == "-u" and items["url"] == ""):
+        items["url"] = sys.argv[i+1]
+    if (sys.argv[i] == "-e" and items["email"] == ""):
+        items["email"] = sys.argv[i+1]
+    if (sys.argv[i] == "-i" and items["ip"] == ""):
+        items["ip"] = sys.argv[i+1]
+
+if (items["url"] != "" and items["email"] != "" and items["ip"] != ""):
+    items["starttime"] = str(datetime.date.today())
+    conn = sqlite3.connect("API.db")
+    cursor = conn.cursor()
+    cursor.execute(
+    "CREATE TABLE IF NOT EXISTS emwiu(id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE, url TEXT, email TEXT, ip TEXT, starttime TEXT)"
+    )
+    conn.commit()
+    cursor.execute("""SELECT * FROM emwiu WHERE url = :url AND email = :email""", items)
+    rows = cursor.fetchall()
+    conn.close()
+    if (len(rows) > 0):
+        sendMail(items["url"], items["email"], "old")        
+    else:
+        conn = sqlite3.connect("API.db")
+        cursor = conn.cursor()
+        cursor.execute("INSERT INTO emwiu(url, email, ip, starttime) VALUES(:url, :email, :ip, :starttime)", items)
+        conn.commit()
+        conn.close()
+        sendMail(items["url"], items["email"], "new") 
+else:
+    print("Not enough arguments.")
+
diff --git a/clear_isitdown_database.py b/clear_isitdown_database.py
new file mode 100644
index 0000000..16dd5db
--- /dev/null
+++ b/clear_isitdown_database.py
@@ -0,0 +1,21 @@
+import sqlite3
+import os
+import sys
+
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+conn = sqlite3.connect("API.db")
+cursor = conn.cursor()
+cursor.execute(
+    "CREATE TABLE IF NOT EXISTS emwiu(id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE, url TEXT, email TEXT, ip TEXT, starttime TEXT)"
+)
+conn.commit()
+cursor.execute("""SELECT * FROM emwiu""")
+rows = cursor.fetchall()
+conn.close()
+
+conn = sqlite3.connect("API.db")
+cursor = conn.cursor()
+for row in rows:
+    cursor.execute("DELETE FROM emwiu WHERE id =?", (row[0], ))
+    conn.commit()
+conn.close()
diff --git a/isitdown.py b/isitdown.py
new file mode 100644
index 0000000..267f114
--- /dev/null
+++ b/isitdown.py
@@ -0,0 +1,143 @@
+import requests
+import time
+import sqlite3
+import datetime
+import api_credentials
+import smtplib
+import os
+
+updateDelay = 5*60
+maxDaysOldRequest = 100
+
+
+def init():
+    """
+        Initialize the program.
+    """
+    print("[i] Initialization started.")
+    os.chdir(os.path.dirname(os.path.abspath(__file__)))
+    conn = sqlite3.connect("API.db")
+    cursor = conn.cursor()
+    cursor.execute(
+        "CREATE TABLE IF NOT EXISTS emwiu(id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE, url TEXT, email TEXT, ip TEXT, starttime TEXT)"
+    )
+    # emwiu (stands for "email me when it's up"):
+    # | id | url | email | ip | starttime |
+    conn.commit()
+    conn.close()
+    print("[i] Initialization done.")
+
+
+def scanTheDatabase():
+    """
+        This is the main loop in the program :
+        It :
+            - scans the database
+            - checks website's status
+            - removes old users and notify them
+            - notifies the ones who have their website up 
+    """
+    print("[i] Main loop engaged.")
+    os.chdir(os.path.dirname(os.path.abspath(__file__)))
+    while True:
+        conn = sqlite3.connect("API.db")
+        cursor = conn.cursor()
+        cursor.execute("""SELECT * FROM emwiu""")
+        rows = cursor.fetchall()
+        conn.close()
+        for row in rows:
+            checkResults = checkWebsite(row[1])
+            if checkResults != False:
+                sendMail(row, checkResults)
+                deleteFromDatabase(row[0])
+            else:
+                if tooOldRequest(row[4]):
+                    sendMail(row, "old")
+                    deleteFromDatabase(row[0])
+        time.sleep(updateDelay)
+        
+
+def sendMail(row, checkResults):
+    """
+        Notifies the user about something important.
+    """
+    print("[i] Sending the email.")
+    date = str(datetime.datetime.now())
+    login = api_credentials.creds["gmail"]["user"]
+    password = api_credentials.creds["gmail"]["password"]
+    mail = smtplib.SMTP('smtp.gmail.com', 587)
+    mail.ehlo()
+    mail.starttls()
+    subject = "EMWIU - "
+    content = "Bonjour !\n\n"
+    if (checkResults != "old"):
+        subject += "Le site est en ligne !"
+        content += "Le site " + \
+            row[1] + " que vous nous avez demande de surveiller est visiblement en ligne !\n"
+        content += "Sa reponse a ete le code : " + str(checkResults) + " !"
+    else:
+        subject += "Ce n'est qu'un au revoir..."
+        content += "Nous contactons pour vous annoncer une mauvaise nouvelle...\n"
+        content += "Cela fait maintenant 100 jours que vous avez demande a avoir des nouvelles du site " + \
+            row[1] + ", et toujours pas de nouvelles aujourd'hui...\n"
+        content += "Nous devons faire un nettoyage regulier de notre Base de Donnee pour s'assurer que l'API ne souffre d'aucun ralentissement.\n"
+        content += "C'est donc pour cette raison que vous en avez ete retire automatiquement. Vous pouvez tout de meme vous reinscrire !"
+    content += "\n\nCordialement,\nL'API EMWIU (Email Me When It's Up!) du site https://louis-vallat.xyz."
+    content += "\nMail genere le : " + date
+    message = 'Subject: {}\n\n{}'.format(subject, content)
+    mail.login(login, password)
+    mail.sendmail(login, row[2], message)
+    mail.quit()
+    print("[i] E-mail sent.")
+
+
+def deleteFromDatabase(rowId):
+    """
+        Delete a row from the database based on its id.
+    """
+    print("[i] Deleting a row from database.")
+    conn = sqlite3.connect("API.db")
+    cursor = conn.cursor()
+    cursor.execute("DELETE FROM emwiu WHERE id =?", (rowId, ))
+    conn.commit()
+    conn.close()
+    print("[i] Row deleted.")
+
+
+def checkWebsite(url):
+    """
+        Checks if a website is up based on its URL.
+        Return False if the website is down, the request code if it's up.
+    """
+    try:
+        r = requests.get(str(url))
+        return r.status_code
+    except requests.exceptions.ConnectionError:
+        return False
+
+
+def dropTabe():
+    """
+        Drop the table.
+    """
+    print("[i] Dropping table.")
+    conn = sqlite3.connect("API.db")
+    cursor = conn.cursor()
+    cursor.execute("DROP TABLE emwiu")
+    conn.commit()
+    conn.close()
+    print("[i] Table dropped.")
+
+
+def tooOldRequest(requestDate):
+    """
+        Check if the age of a request
+    """
+    todaysDate = datetime.datetime.strptime(
+        str(datetime.date.today()), "%Y-%m-%d")
+    requestDate = datetime.datetime.strptime(str(requestDate), "%Y-%m-%d")
+    return (abs((todaysDate - requestDate).days) >= maxDaysOldRequest)
+
+
+init()
+scanTheDatabase()
diff --git a/read_isitdown_database.py b/read_isitdown_database.py
new file mode 100644
index 0000000..adfee15
--- /dev/null
+++ b/read_isitdown_database.py
@@ -0,0 +1,17 @@
+import sqlite3
+import os
+import sys
+
+os.chdir(os.path.dirname(os.path.abspath(__file__)))
+conn = sqlite3.connect("API.db")
+cursor = conn.cursor()
+cursor.execute(
+    "CREATE TABLE IF NOT EXISTS emwiu(id INTEGER PRIMARY KEY AUTOINCREMENT UNIQUE, url TEXT, email TEXT, ip TEXT, starttime TEXT)"
+)
+conn.commit()
+cursor.execute("""SELECT * FROM emwiu""")
+rows = cursor.fetchall()
+conn.close()
+
+for row in rows:
+    print(row)