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:ad287.com/A_PH/101728/3-135x135.jp...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (5002)
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
Date Wed, 19 Feb 2020 04:52:43 GMT
Server Apache/2.2.3 (CentOS)
Last-Modified Wed, 19 Feb 2020 04:14:57 GMT
ETag 76c12a-1a70-59ee607f95240
Accept-Ranges bytes
Content-Length 6768
Content-Type image/jpeg

Load Info

page size6768
load time (s)2.331676
redirect count0
speed download2902
server IP60.199.209.171


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