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:pbs.twimg.com/media/DJIukNvW4AAE3uv.jp...
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
access-control-allow-origin *
access-control-expose-headers Content-Length
cache-control max-age=604800, must-revalidate
last-modified Thu, 07 Sep 2017 16:56:25 GMT
strict-transport-security max-age=631138519
x-connection-hash ac70f8c112b3f618a8f831b31e4af209
x-response-time 247
Content-Type image/jpeg
Content-Length 30440
Accept-Ranges bytes
Date Tue, 21 Nov 2017 06:19:40 GMT
Via 1.1 varnish
Age 119039
Connection keep-alive
X-Served-By cache-tw-par1-2-TWPAR1
X-Cache HIT
X-Timer S1511245181.816346,VS0,VE1
Expires Wed, 06 Dec 2017 06:19:40 GMT
X-Content-Type-Options nosniff

Load Info

page size30440
load time (s)0.003808
redirect count0
speed download0
server IP104.244.46.135


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