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.arendator.ru/data/files/mat/0/949/abc-file-36313.gi...
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
Server nginx
Date Mon, 19 Feb 2018 14:04:40 GMT
Content-Type image/gif
Content-Length 32702
Last-Modified Wed, 27 Dec 2017 13:34:57 GMT
Connection keep-alive
ETag 5a43a181-7fbe
Expires Thu, 31 Dec 2037 23:55:55 GMT
Cache-Control max-age=315360000
Access-Control-Allow-Origin htt???/test.arendator.ru
Accept-Ranges bytes

Load Info

page size32702
load time (s)0.199477
redirect count0
speed download0
server IP80.93.176.99


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