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:pagead2.googlesyndication.com/pagead/js/lidar.j...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (5002)

Header

HTTP/1.1 200 OK
P3P policyref= htt???/www.googleadservices.com/pagead/p3p.xml , CP= NOI DEV PSA PSD IVA IVD OTP OUR OTR IND OTC
Timing-Allow-Origin *
Vary Accept-Encoding
Date Wed, 23 May 2018 21:56:01 GMT
Expires Wed, 23 May 2018 22:56:01 GMT
Content-Type text/javascript; charset=UTF-8
ETag 799210813597447151
X-Content-Type-Options nosniff
Content-Disposition attachment; filename= f.txt
Content-Encoding gzip
Server cafe
Content-Length 26340
X-XSS-Protection 1; mode=block
Age 2901
Cache-Control public, max-age=3600

Load Info

page size74043
load time (s)0.006451
redirect count0
speed download4083087
server IP172.217.22.130


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