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:cdn.profile-image.st-hatena.com/users/jonmichal203202/profile.gif?154720113...
site title:
Url ContentGraphics Interchange Format
MIME Type / Internet Media Typeimage/gif
MIME Type image
File Extension.gif
More Details (link to:)Wikipedia: Graphics Interchange Format
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
x-amz-id-2 XdsuEgaWgdMFJpPlf47CDEqcZAuHoqwkVFs4jh5ugu/rfee7wDvSBTGrqb9sCZrVtoHXb0Nwruo=
x-amz-request-id DE803199D90E0F94
Last-Modified Fri, 11 Jan 2019 10:05:35 GMT
ETag d0e594ff503dbb50c4a42a594ab6bc5b
Accept-Ranges bytes
Content-Type image/gif
Content-Length 4220
Server AmazonS3
Date Sun, 25 Aug 2019 05:17:41 GMT
Connection keep-alive

Load Info

page size4220
load time (s)0.70908
redirect count0
speed download0
server IP23.34.189.175


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