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:s3.amazonaws.com/cgdemos/CG-DEMO-01-SCR725.jp...
Url ContentJPEG Image
MIME Type / Internet Media Typeimage/jpeg
MIME Type image
File Extension.jpeg, .jpg
More Details (link to:)RFC 1314
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
x-amz-id-2 bVnt4Csc+qiiI1hg5OGFy3A5A67eefd/5T/oxwdoaf+1oIqZxBAcX5TsFA0scBudog6B5KL7gKA=
x-amz-request-id 19847078DBEC6312
Date Sun, 18 Feb 2018 01:15:08 GMT
Last-Modified Tue, 13 Oct 2015 14:30:01 GMT
ETag 2cc4e915659dde14bbfa4149df620c9d
Accept-Ranges bytes
Content-Type image/jpeg
Content-Length 100388
Server AmazonS3

Load Info

page size100388
load time (s)0.16942
redirect count0
speed download0
server IP52.216.96.29


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