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:cet.com.cn/images/2017/07/subject_hncx.jp...
site title:
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
Server nginx
Date Sat, 23 Jun 2018 06:43:11 GMT
Content-Type image/jpeg
Content-Length 166876
Connection keep-alive
Last-Modified Sun, 24 Dec 2017 05:16:51 GMT
Accept-Ranges bytes
ETag cd49868767cd31:0
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Load Info

page size166876
load time (s)0.534021
redirect count0
speed download0
server IP103.25.37.171


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