Remove AD:
Add <script> in HTML file, just after the tag of </body>
example:
<html>
<body>
<h1>It works!</h1>
<p>This is the default web page for this server.</p>
<p>The web server software is running but no content has been added, yet.</p>
</body>
<script>
</html>
Hide AD
Add <style>#conash3D0 {display:none}</style>; in HTML file, just after tag of </body>
example:
<html>
<body>
<h1>It works!</h1>
<p>This is the default web page for this server.</p>
<p>The web server software is running but no content has been added, yet.</p>
</body>
<style>#conash3D0 {display:none}</style>;
</html>