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:top90.ir/images/newspapers/fa/EsteghlalJavan_Thumb.jpg?1...
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
Date Sun, 17 Dec 2017 10:08:37 GMT
Server Apache
Last-Modified Wed, 01 Nov 2017 07:30:16 GMT
ETag 875a-55ce6d7d27b16
Accept-Ranges bytes
Content-Length 34650
Content-Type image/jpeg

Load Info

page size34650
load time (s)0.453833
redirect count0
speed download0
server IP185.4.30.250


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