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/ext_tw_video_thumb/1221589128686391296/pu/img/RuzDRK5vPsuNbdFz.jpg?name=ori...
URL does not point to a web page (html/xhtml) or read error or page not found. (404)

Header

HTTP/1.1 404 Not Found
Access-Control-Allow-Origin *
Access-Control-Expose-Headers Content-Length
Cache-Control max-age=86400, must-revalidate
Content-Length 0
Server tsa_a
x-connection-hash 6fac7ca72f136b0b7a6b6500bb1e11d9
x-response-time 10
Date Sat, 19 Sep 2020 16:22:01 GMT
Connection keep-alive
X-Cache MISS
X-Client-Network EIP
X-TW-CDN ak

Load Info

load time (s)0.30928
redirect count0
speed download0
server IP23.1.106.237


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