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:ajenti.org/static/home/img/screens/ajenti-v/1.pn...
site title:
Url ContentPortable Network Graphics (PNG)
MIME Type / Internet Media Typeimage/png
MIME Type image
File Extension.png
More Details (link to:)RFC 2083
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Header

HTTP/1.1 200 OK
Server nginx
Content-Type image/png
Last-Modified Wed, 20 Sep 2017 20:22:07 GMT
ETag 59c2cdef-9e65
Content-Length 40549
Accept-Ranges bytes
Date Mon, 20 Aug 2018 02:48:15 GMT
X-Varnish 824637456 824637420
Age 67
Via 1.1 varnish
Connection keep-alive

Load Info

page size40549
load time (s)1.523254
redirect count0
speed download0
server IP109.239.49.179


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