index.html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <meta
      name="viewport"
      content="minimum-scale=1, initial-scale=1, width=device-width"
    />
    <title>Invalid Link!</title>
  </head>
  <body>
    <p>Short URL is invalid! (Or you have been spamming the site too much)</p>
    <p>
      <a href="https://github.com/mayandev/link"
        >Learn more about this URL shortener</a
      >
    </p>
  </body>
</html>