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.provincedeliege.be/sites/default/files/media/12665/TERRES-AUTOC-17-page-001vignetteweb.jp...
Url ContentJPEG Image
MIME Type / Internet Media Typeimage/jpeg
MIME Type image
File Extension.jpeg, .jpg
More Details (link to:)RFC 1314
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Header

HTTP/1.1 200 OK
Date Wed, 22 Nov 2017 21:59:30 GMT
Server Apache
Last-Modified Fri, 13 Oct 2017 14:09:17 GMT
Accept-Ranges bytes
Content-Length 50168
Cache-Control max-age=1209600
Expires Wed, 06 Dec 2017 21:59:30 GMT
Content-Type image/jpeg

Load Info

page size50168
load time (s)0.998012
redirect count0
speed download0
server IP193.190.122.7


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