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:21stcenturywire.com/wp-content/uploads/2013/03/123WMD-120x120.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
Last-Modified Wed, 27 Mar 2013 23:28:49 GMT
ETag 1b07-4d8f0666cce40
Cache-Control max-age=5184000
Expires Thu, 22 Mar 2018 18:29:57 GMT
Content-Type image/jpeg
X-Port port_10541
X-Cacheable YES
Content-Length 6919
Date Sun, 21 Jan 2018 18:29:57 GMT
Age 0
X-Cache uncached
X-Cache-Hit MISS
X-Backend all_requests
Accept-Ranges bytes

Load Info

page size6919
load time (s)0.382218
redirect count0
speed download0
server IP198.71.233.195


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