diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..6560853
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,186 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "${file}",
+            "cwd": "${workspaceFolder}",
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput"
+            ]
+        },
+        {
+            "name": "Python: Attach",
+            "type": "python",
+            "request": "attach",
+            "localRoot": "${workspaceFolder}",
+            "remoteRoot": "${workspaceFolder}",
+            "port": 3000,
+            "secret": "my_secret",
+            "host": "localhost"
+        },
+        {
+            "name": "Python: Terminal (integrated)",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "${file}",
+            "cwd": "",
+            "console": "integratedTerminal",
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": []
+        },
+        {
+            "name": "Python: Terminal (external)",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "${file}",
+            "cwd": "",
+            "console": "externalTerminal",
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": []
+        },
+        {
+            "name": "Python: Django",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "${workspaceFolder}/manage.py",
+            "cwd": "${workspaceFolder}",
+            "args": [
+                "runserver",
+                "--noreload",
+                "--nothreading"
+            ],
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput",
+                "DjangoDebugging"
+            ]
+        },
+        {
+            "name": "Python: Flask (0.11.x or later)",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": false,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "fully qualified path fo 'flask' executable. Generally located along with python interpreter",
+            "cwd": "${workspaceFolder}",
+            "env": {
+                "FLASK_APP": "${workspaceFolder}/quickstart/app.py"
+            },
+            "args": [
+                "run",
+                "--no-debugger",
+                "--no-reload"
+            ],
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput"
+            ]
+        },
+        {
+            "name": "Python: Flask (0.10.x or earlier)",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": false,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "${workspaceFolder}/run.py",
+            "cwd": "${workspaceFolder}",
+            "args": [],
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput"
+            ]
+        },
+        {
+            "name": "Python: PySpark",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "osx": {
+                "pythonPath": "${env:SPARK_HOME}/bin/spark-submit"
+            },
+            "windows": {
+                "pythonPath": "${env:SPARK_HOME}/bin/spark-submit.cmd"
+            },
+            "linux": {
+                "pythonPath": "${env:SPARK_HOME}/bin/spark-submit"
+            },
+            "program": "${file}",
+            "cwd": "${workspaceFolder}",
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput"
+            ]
+        },
+        {
+            "name": "Python: Module",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "module": "module.name",
+            "cwd": "${workspaceFolder}",
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput"
+            ]
+        },
+        {
+            "name": "Python: Pyramid",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "cwd": "${workspaceFolder}",
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "args": [
+                "${workspaceFolder}/development.ini"
+            ],
+            "debugOptions": [
+                "RedirectOutput",
+                "Pyramid"
+            ]
+        },
+        {
+            "name": "Python: Watson",
+            "type": "python",
+            "request": "launch",
+            "stopOnEntry": true,
+            "pythonPath": "${config:python.pythonPath}",
+            "program": "${workspaceFolder}/console.py",
+            "cwd": "${workspaceFolder}",
+            "args": [
+                "dev",
+                "runserver",
+                "--noreload=True"
+            ],
+            "env": {},
+            "envFile": "${workspaceFolder}/.env",
+            "debugOptions": [
+                "RedirectOutput"
+            ]
+        }
+    ]
+}
\ No newline at end of file
diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000..915015d
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,4 @@
+{
+    "python.linting.pylintEnabled": false,
+    "python.pythonPath": "C:\\Users\\ab\\AppData\\Local\\Programs\\Python\\Python36-32\\python.exe"
+}
\ No newline at end of file
diff --git a/add.php b/add.php
index 7bf0138..e3292cf 100644
--- a/add.php
+++ b/add.php
@@ -13,17 +13,25 @@ if (
 }
 else{
     $url = $_POST['url'];
-    if (filter_var($url, FILTER_VALIDATE_URL) === FALSE) {
+    // check url is valid
+    if (
+        filter_var($url, FILTER_VALIDATE_URL) === FALSE ||
+        !((parse_url($url, PHP_URL_HOST) == 'rutracker.org')) ||
+        !((parse_url($url, PHP_URL_PATH) == '/forum/viewtopic.php')) ||
+        !((parse_url($url, PHP_URL_QUERY)))
+        ) {
         die('Not a valid URL');
     }    
     parse_str((parse_url($url, PHP_URL_QUERY)), $url);
+    if (!isset($url['t']))
+    {
+        die('Not a valid URL');
+    }
     $url = $url['t'];
     $username = $_POST['telegram'];
 }
 
-// check url is valid
-
-// check user already reqested notify about this topic
+// check if the same user already reqested notify about the same this topic
 $stmt = $dbh->query(
     'SELECT c.username, u.link FROM `contact` c 
     LEFT JOIN `url` u ON u.id = c.topic_id 
diff --git a/index.php b/index.html
similarity index 93%
rename from index.php
rename to index.html
index 96e14e5..1558d17 100644
--- a/index.php
+++ b/index.html
@@ -1,22 +1,17 @@
-<?php
-
-?>
-
-<!DOCTYPE html>
-<html>
-
-<head>
-    <meta charset="UTF-8">
-    <title>Let me know</title>
-</head>
-
-<body>
-    <h1>Rutracker notifyer </h1>
-    <h3>I will notify you when interesting for you topic will be updated.</h3>
-    <form action="add.php" method="post">
-            <label>URL </label><input name="url" type="text"><br>
-            <label>Telegram </label><input name="telegram" type="text">
-            <input type="submit">
-    </form>
-</body>
+<!DOCTYPE html>
+<html>
+<head>
+    <meta charset="UTF-8">
+    <title>Let me know</title>
+</head>
+
+<body>
+    <h1>Rutracker notifyer </h1>
+    <h3>I will notify you when interesting for you topic will be updated.</h3>
+    <form action="add.php" method="post">
+            <label>URL </label><input name="url" type="text"><br>
+            <label>Telegram </label><input name="telegram" type="text">
+            <input type="submit">
+    </form>
+</body>
 </html>
\ No newline at end of file
diff --git a/updater.py b/updater.py
new file mode 100644
index 0000000..c7ad32b
--- /dev/null
+++ b/updater.py
@@ -0,0 +1,45 @@
+
+# TODO - config file. 
+import pymysql.cursors
+import urllib.request, json 
+import datetime as dt
+
+interval = '1 HOUR'
+# Connect to the database
+connection = pymysql.connect(host='localhost',
+                             user='root',
+                             db='test',
+                             cursorclass=pymysql.cursors.DictCursor)
+
+# If u_date which already stored older than fresh u_date
+# so going to notify
+# Any way update last_check
+def check_updates(id, u_date):
+    with urllib.request.urlopen(
+        "http://api.rutracker.org/v1/get_tor_topic_data?by=topic_id&val="+id) as url:
+        data = json.loads(url.read().decode())
+        last_check = dt.datetime.now()
+        new_u_date = dt.datetime.fromtimestamp(int(data['result'][id]['reg_time']))
+        if new_u_date > u_date:
+            print("There is an update. Going to notify.")
+
+        with connection.cursor() as cursor:
+            # Create a new record
+            sql = "UPDATE url SET last_check = %s, u_date = %s WHERE link =  %s"
+            cursor.execute(sql, (
+                last_check.strftime('%Y-%m-%d %H:%M:%S'),
+                new_u_date.strftime('%Y-%m-%d %H:%M:%S'),
+                 id))
+        connection.commit()        
+
+try:
+    with connection.cursor() as cursor:
+        # Read a single record
+        sql = "SELECT * FROM url WHERE last_check < DATE_SUB(NOW(), INTERVAL %s)" % interval
+        cursor.execute(sql)
+        result = cursor.fetchall()
+        for line in result:
+            print('Going to check %s. Last check was at %s' % (line['link'], line['last_check']))
+            check_updates(line['link'], line['u_date'])
+finally:
+    connection.close()
\ No newline at end of file