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.99inf.com/space/201205/3197631/pic/pic_file_3197631_1502763674_thump.jpe...
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
Date Sun, 21 Jan 2018 18:49:46 GMT
Content-Type image/jpeg
Content-Length 25853
Connection keep-alive
Set-Cookie __cfduid=d01ffc0416c6b120889bbcc14f74c83951516560586; expires=Mon, 21-Jan-19 18:49:46 GMT; path=/; domain=.99inf.com; HttpOnly
Last-Modified Tue, 15 Aug 2017 02:21:14 GMT
ETag 2e215b7-64fd-556c16efd8cf8
Cache-Control public, max-age=2592000
CF-Cache-Status MISS
Vary Accept-Encoding
Expires Tue, 20 Feb 2018 18:49:46 GMT
Accept-Ranges bytes
Server yunjiasu-nginx
CF-RAY 3e0c748ee37c14f7-CDG

Load Info

page size25853
load time (s)0.729773
redirect count0
speed download0
server IP162.159.233.106


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