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:www.139cai.com/images/index/logo_1.jp...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (404)
Url ContentHyperText Markup Language (HTML)
MIME Type / Internet Media Typetext/html
MIME Type text
File Extension.html
More Details (link to:)Wikipedia: HTML
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 404 Not Found
Date Sun, 16 Dec 2018 04:00:31 GMT
Server nginx/1.10.2
Content-Type text/html; charset=utf-8
Transfer-Encoding chunked
Content-Encoding gzip
X-Cache MISS from cache.51cdn.com
X-Via 1.1 xinxiazai136:3 (Cdn Cache Server V2.0)
Connection close

Load Info

page size169
load time (s)3.155883
redirect count0
speed download41
server IP118.180.9.159


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