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:umlonline.cn/images/logo.gi...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (5002)
Url ContentGraphics Interchange Format
MIME Type / Internet Media Typeimage/gif
MIME Type image
File Extension.gif
More Details (link to:)Wikipedia: Graphics Interchange Format
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
Date Sun, 31 May 2020 07:03:27 GMT
Server Apache/2.2.3 (CentOS)
Last-Modified Sun, 28 Aug 2016 12:00:21 GMT
ETag 2abf4a9-d18-7de97f40
Accept-Ranges bytes
Content-Length 3352
Connection close
Content-Type image/gif

Load Info

page size3352
load time (s)1.899873
redirect count0
speed download1764
server IP112.121.178.133


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