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:googleads.g.doubleclick.net/pagead/images/adchoices/iconx2-000000.pn...
Url ContentPortable Network Graphics (PNG)
MIME Type / Internet Media Typeimage/png
MIME Type image
File Extension.png
More Details (link to:)RFC 2083
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
P3P policyref= htt???/googleads.g.doubleclick.net/pagead/gcn_p3p_.xml , CP= CURa ADMa DEVa TAIo PSAo PSDo OUR IND UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR
Timing-Allow-Origin *
Date Mon, 11 Dec 2017 15:59:16 GMT
Expires Tue, 12 Dec 2017 15:59:16 GMT
Content-Type image/png
ETag 7710300208861385503
X-Content-Type-Options nosniff
Server cafe
Content-Length 557
X-XSS-Protection 1; mode=block
Age 31415
Cache-Control public, max-age=86400

Load Info

page size557
load time (s)0.008576
redirect count0
speed download0
server IP216.58.201.226


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