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:erotelki.org/engine/ajax/loading.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
Server nginx
Date Sat, 20 Oct 2018 03:08:54 GMT
Content-Type image/gif
Content-Length 734
Last-Modified Sat, 19 Oct 2013 00:44:03 GMT
Connection keep-alive
ETag 5261d5d3-2de
Expires Mon, 19 Nov 2018 03:08:54 GMT
Cache-Control max-age=2592000
Accept-Ranges bytes

Load Info

page size734
load time (s)1.548346
redirect count0
speed download0
server IP5.44.220.117


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