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:daotao.vnua.edu.vn/App_Themes/Standard/Images/icon_11c.gi...
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
Content-Type image/gif
Last-Modified Tue, 02 Oct 2012 02:34:52 GMT
Accept-Ranges bytes
ETag 7f4a48046a0cd1:0
Server Microsoft-IIS/10.0
X-Powered-By ASP.NET
Access-Control-Allow-Origin htt???/daotao.vnua.edu.vn
Date Fri, 07 May 2021 00:44:11 GMT
Content-Length 54

Load Info

page size54
load time (s)0.893647
redirect count0
speed download60
server IP220.231.107.130


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