memberships/index.html (10 lines of code) (raw):
<!DOCTYPE html>
<html>
<head>
<meta name="robots" content="noindex">
<meta http-equiv="refresh" content="0; url=https://opensource.twitter.dev/memberships/">
</head>
<body>
<a href="https://opensource.twitter.dev/memberships/">Moved Permanently</a>
</body>
</html>