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, 19 Feb 2018 00:28:34 GMT
Expires Mon, 19 Feb 2018 02:28:34 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 6898

Load Info

page size14597
load time (s)0.002887
redirect count0
speed download0
server IP216.58.206.238


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