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:k12.sd.us/images/tabs.gi...
site title:
Url ContentGraphics Interchange Format
MIME Type / Internet Media Typeimage/gif
MIME Type image
File Extension.gif
More Details (link to:)Wikipedia: Graphics Interchange Format
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Content-Type image/gif
Last-Modified Fri, 21 Jul 2017 14:19:37 GMT
Accept-Ranges bytes
ETag 9c422b622c2d31:0
Server Microsoft-IIS/8.5
Date Sat, 26 May 2018 13:37:46 GMT
Content-Length 2878
Set-Cookie BIGipServerWeb_www.k12.sd.us_pool=3761549518.20480.0000; path=/; Httponly

Load Info

page size2878
load time (s)0.453359
redirect count0
speed download0
server IP206.176.53.70


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