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-ak.favicon.st-hatena.com/?url=http%3A%2F%2Fgendai.ismedia.jp%2Farticles%2F-%2F5451...
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
Content-Type image/png
Content-Length 437
Server nginx/1.2.2
ETag 1390772026
X-Cache-Lookup HIT from squid.hatena.ne.jp:8080
Cache-Control public, max-age=581599, s-maxage=86400
Date Sun, 17 Jun 2018 21:53:13 GMT
Connection keep-alive
Set-Cookie b=$1$agVuk0Yq$IpObrhEvAiCn4mX/pmxa90; expires=Sat, 12-Jun-2038 21:53:13 GMT; domain=hatena.ne.jp; path=/

Load Info

page size437
load time (s)0.709427
redirect count0
speed download0
server IP23.57.82.2


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