Dang nhap csm de lay code
<form method="post">
    <input type="text" name="domain" placeholder="domain.com" required=""/><br>
    <input type="text" name="domain2" placeholder="domain2.com"/><br>
    <input type="text" name="domain3" placeholder="domain3.com"/><br>
    <input type="text" name="code" placeholder="000-000-000" required=""/><br>
    <button type="submit">Check</button>
</form>