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:img.o571.com/fc/ad/20131112105718677.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
Cache-Control max-age=2592000
Content-Length 13295
Content-Type image/jpeg
Last-Modified Wed, 31 Aug 2016 09:17:22 GMT
Accept-Ranges bytes
ETag 4e8b27b683d21:0
Server Microsoft-IIS/7.5
X-Powered-By ASP.NET
Date Sun, 25 Feb 2018 07:40:20 GMT

Load Info

page size13295
load time (s)1.70166
redirect count0
speed download0
server IP118.31.112.121


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