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/233NAmdJfumuSeKFLDXv6ayJiJwq/gcx-jewelry-and-watches-335x288/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 10873
Last-Modified Wed, 22 Aug 2018 21:06:17 GMT
ETag 412936d8237227e72cc1af160201a55b
Cache-Control public, max-age=2591971
Expires Sat, 22 May 2021 14:57:36 GMT
Date Thu, 22 Apr 2021 14:58:05 GMT
Connection keep-alive
Access-Control-Allow-Origin *

Load Info

page size10873
load time (s)0.306421
redirect count0
speed download35483
server IP92.122.202.168


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