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:radio.elka.pl/FotoMiniatury/2017112715205067.jp...
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/1.6.2
Date Mon, 21 May 2018 15:02:05 GMT
Content-Type image/jpeg
Content-Length 12375
Connection keep-alive
Expires Mon, 21 May 2018 15:03:05 GMT
Cache-Control max-age=60
Accept-Ranges bytes
ETag 9677288
Last-Modified Mon, 27 Nov 2017 14:20:50 GMT

Load Info

page size12375
load time (s)0.286783
redirect count0
speed download0
server IP195.62.12.100


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