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/4XoHLGFbpys3HLSafv95GTaHWzRj/gcx-sports-and-outdoors-335x266/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 9718
Last-Modified Wed, 22 Aug 2018 20:49:01 GMT
ETag f5b481b0d954bb00ceed616f8a37bbcf
Cache-Control public, max-age=2591974
Expires Sat, 22 May 2021 15:15:55 GMT
Date Thu, 22 Apr 2021 15:16:21 GMT
Connection keep-alive
Access-Control-Allow-Origin *

Load Info

page size9718
load time (s)0.303307
redirect count0
speed download32040
server IP104.80.20.162


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