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:img.grouponcdn.com/sls/22XEFUdzbpEgfRtSE3rtny5bmMxY/gcx-mens-clothing-shoes-and-accessories-335x385/v1/q7...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (5002)

Header

HTTP/1.1 200 OK
Server nginx/1.12.2
Content-Type image/jpeg
Content-Length 17947
Last-Modified Wed, 22 Aug 2018 20:46:54 GMT
ETag 6b9b485165febff32a33accbe3e2ab22
Cache-Control public, max-age=2551632
Expires Sat, 22 May 2021 02:36:00 GMT
Date Thu, 22 Apr 2021 13:48:48 GMT
Connection keep-alive
Access-Control-Allow-Origin *

Load Info

page size17947
load time (s)0.130437
redirect count0
speed download137591
server IP92.122.202.168


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