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/phpu/getface.phpx?rid=10211075&fid=100 redirected to: www.139cai.com/cpdata/pupload/face/10211075/10211075.jp...
site title:

Header

HTTP/1.1 302 Moved Temporarily
Date Thu, 19 Apr 2018 15:31:56 GMT
Server nginx/1.10.2
Content-Type image/*;charset=UTF-8
Content-Length 0
Set-Cookie PHPSESSID-UUID=3140657AA9C7416C9517B59DBA27976C; Domain=139cai.com; Path=/
Cache-Control no-cache
Pragma no-cache
Expires Thu, 01 Jan 1970 00:00:00 GMT
Set-Cookie JSESSIONID=E3DAB75DB8C2AB3FC405D70A5635A99F; Path=/; HttpOnly
Location htt???/www.139cai.com/cpdata/pupload/face/10211075/10211075.jpg
P3P CP=CAO PSA OUR
X-Cache MISS from cache.51cdn.com
X-Via 1.1 jszjsx54:0 (Cdn Cache Server V2.0), 1.1 km90:2 (Cdn Cache Server V2.0)
Connection keep-alive

Load Info

load time (s)6.287192
redirect count1
speed download0
server IP116.55.236.201


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