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-ak2.favicon.st-hatena.com/?url=https%3A%2F%2Fspeakerdeck.com%2Fmashabow%2Fbezier-smoothness redirected to: cdn-ak-scissors.favicon.st-hatena.com/image/favicon2/a49e2b7231a05a4341d343b0a7f268b22d020edc/backend=imagemagick;size=16;version=1/https%3A%2F%2Fd2dfho4r6t7asi.cloudfront.net%2Fassets%2Ffavicon-c0fe5475f88a65b817c8cc7c0fedc01b7acc17fe27628fa13ca3f96e56e16977.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/1.1 302 Moved Temporarily
Content-Type text/html; charset=utf-8
Content-Length 294
Location htt????/cdn-ak-scissors.favicon.st-hatena.com/image/favicon2/a49e2b7231a05a4341d343b0a7f268b22d020edc/backend=imagemagick;size=16;version=1/https%3A%2F%2Fd2dfho4r6t7asi.cloudfront.net%2Fassets%2Ffavicon-c0fe5475f88a65b817c8cc7c0fedc01b7acc17fe27628fa13ca3f96e56e16977.png
Date Fri, 19 Jul 2019 07:58:35 GMT
Connection keep-alive
HTTP/1.1 200 OK
Content-Type image/png
X-Runtime 1.351733
Content-Length 714
Cache-Control max-age=719049
Expires Sat, 27 Jul 2019 15:42:44 GMT
Date Fri, 19 Jul 2019 07:58:35 GMT
Connection keep-alive

Load Info

page size714
load time (s)3.302616
redirect count1
speed download0
server IP23.206.29.169


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