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:resources.diigo.com/images/avatar/user/shanaybarr_48.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
Date Fri, 24 May 2019 13:40:14 GMT
Content-Type image/jpeg
Content-Length 993
Last-Modified Mon, 05 Nov 2007 11:54:06 GMT
Connection keep-alive
Accept-Ranges bytes

Load Info

page size993
load time (s)0.260941
redirect count0
speed download0
server IP54.201.55.105


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