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...
site title:
Url ContentJPEG Image
MIME Type / Internet Media Typeimage/jpeg
MIME Type image
File Extension.jpeg, .jpg
More Details (link to:)RFC 1314
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Header

HTTP/1.1 200 OK
Server nginx
Date Tue, 16 Oct 2018 02:02:06 GMT
Content-Type image/jpeg
Content-Length 25853
Last-Modified Tue, 15 Aug 2017 02:21:14 GMT
Connection keep-alive
ETag 59925a9a-64fd
Accept-Ranges bytes

Load Info

page size25853
load time (s)1.768037
redirect count0
speed download0
server IP156.238.100.98


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