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:www.uno.edu/silver-and-blue/issues/2017Fall-Web.pd...
URL does not point to a web page (html/xhtml) or read error or page not found. (6001)
Url ContentAdobe Portable Document Format
MIME Type / Internet Media Typeapplication/pdf
MIME Type application
File Extension.pdf
More Details (link to:)Adobe PDF
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Content-Length 8445993
Content-Type application/pdf
Last-Modified Mon, 20 Nov 2017 17:16:29 GMT
Accept-Ranges bytes
ETag 2214374e2362d31:0
Server Microsoft-IIS/7.5
X-Powered-By ASP.NET
Date Sat, 24 Feb 2018 06:14:48 GMT

Load Info

page size8445993
load time (s)2.780603
redirect count0
speed download0
server IP137.30.242.38


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