If you are not sure if the website you want to visit is safe, you can check it out here. Enter the address (url) of the website and see the invisible elements, such as a header or meta data.
site address:ndus.edu/syndicate/rss2.xm...
Url Content
MIME Type / Internet Media Typetext/xml
MIME Type
File Extension
More Details (link to:)
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Transfer-Encoding chunked
Content-Type text/xml
Content-Encoding gzip
Last-Modified Fri, 23 Feb 2018 20:19:03 GMT
Accept-Ranges bytes
ETag 5c315c8ce3acd31:0
Vary Accept-Encoding
Server Microsoft-IIS/8.5
X-Powered-By ASP.NET
Date Sun, 25 Feb 2018 07:42:17 GMT

Load Info

load time (s)0.50704
redirect count0
speed download0
server IP216.147.167.67


* all occurrences of the string "http://" have been changed to "htt???/"