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:spotify.i.lithium.com/t5/image/serverpage/avatar-name/Country/avatar-theme/candy/avatar-collection/Spotify_New/avatar-display-size/message/version/1_1?xdesc=1....
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
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Cache-Control max-age=900
Content-Disposition inline
Content-Type image/png;charset=UTF-8
Date Sun, 23 Sep 2018 02:55:07 GMT
Expires Mon, 23 Sep 2019 02:55:07 GMT
Last-Modified Sun, 23 Sep 2018 02:51:55 GMT
Server Apache
Set-Cookie LiSESSIONID=E19AF8B8232F539A561261B25E49D320; Path=/; HttpOnly
Content-Length 2574

Load Info

page size2574
load time (s)0.253619
redirect count0
speed download0
server IP93.184.220.97


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