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.google-analytics.com/analytics.j...

Header

HTTP/1.1 200 OK
Strict-Transport-Security max-age=10886400; includeSubDomains; preload
Timing-Allow-Origin *
Date Mon, 11 Dec 2017 23:51:46 GMT
Expires Tue, 12 Dec 2017 01:51:46 GMT
Last-Modified Mon, 13 Nov 2017 20:19:12 GMT
X-Content-Type-Options nosniff
Content-Type text/javascript
Vary Accept-Encoding
Content-Encoding gzip
Server Golfe2
Content-Length 14597
Cache-Control public, max-age=7200
Age 3122

Load Info

page size14597
load time (s)0.01195
redirect count0
speed download0
server IP66.102.1.138


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