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:secure-mediadb.kicker.de/library/image/ic-rsstooltip-header.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
Date Mon, 24 Jun 2019 18:06:17 GMT
Expires Thu, 30 Apr 2020 03:20:21 GMT
Last-Modified Mon, 19 Jul 2010 07:56:57 GMT
Content-Type image/gif
Accept-Ranges bytes
Server Apache/2.2.3 (CentOS)
X-Pad avoid browser bug
Content-Length 54

Load Info

page size54
load time (s)1.522574
redirect count0
speed download0
server IP198.78.197.113


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