Looks like it's a cut/paste error. If you do wget www.doioig.gov, this is the page you get. Notice the meta refresh that points to stackoverflow.com.
<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<meta http-equiv="refresh" content="1;url=http://stackoverflow.com">
<script language="javascript">
window.location.href = "http://www.doi.gov/oig/index.cfm"
</script>
<title>Page Redirection</title>
</head>
<body>
If you are not redirected automatically, please click the link to continue to the <a href='http://www.doi.gov/oig/index.cfm'>U.S. Department of the Interior Office of Inspector General.</a>
</body>
</html>
