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:www11.a8.net/0.gif?a8mat=1O9DUN+4RHMA+S1Q+BWGD...
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
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Header

HTTP/1.1 200 OK
Content-Type image/gif
Date Fri, 22 Jun 2018 22:14:30 GMT
Server Apache
Content-Length 43
Connection keep-alive

Load Info

page size43
load time (s)1.756128
redirect count0
speed download0
server IP54.178.196.65


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