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:66.media.tumblr.com/f7fb2859937153cdc793576e12d79332/tumblr_oarpefPwLJ1u1ka35o1_1280.jp...
site title:
Url ContentJPEG Image
MIME Type / Internet Media Typeimage/jpeg
MIME Type image
File Extension.jpeg, .jpg
More Details (link to:)RFC 1314
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Accept-Ranges bytes
Access-Control-Allow-Methods GET
Access-Control-Allow-Origin *
Access-Control-Max-Age 600
Age 485350
alt-svc quic= :443 ; ma=2592000; v= 39,38,37,35
Cache-Control max-age=1209600
Content-Type image/jpeg
Date Thu, 19 Jul 2018 09:18:53 GMT
Etag e4fae325be980f9a06e84c4bdea76fce-1498089600-42e44d9
Last-Modified Thu, 22 Jun 2017 00:00:00 GMT
Server ECAcc (dcb/7FA6)
Timing-Allow-Origin *
X-Cache HIT
x-frames 1
Content-Length 331688

Load Info

page size331688
load time (s)3.712117
redirect count0
speed download0
server IP152.199.19.43


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