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:w1.ax.xrea.com/l.f?id=100661272&url=...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (5002)
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 Tue, 20 Feb 2018 11:52:25 GMT
Server Apache
Last-Modified Sat, 29 Jan 2005 15:28:37 GMT
ETag 1e07e8-118-3eed26fd67340
Accept-Ranges bytes
Content-Length 280
Connection close
Content-Type image/gif

Load Info

page size280
load time (s)0.477497
redirect count0
speed download586
server IP133.130.6.53


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