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:err.tmall.com/error1.html?c=404&u=https://pages.tmall.co...
favicon.ico:
site title:您查看的页面找不到了!-理想生活上天猫
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/1.1 200 OK
Server Tengine
Content-Type text/html; charset=utf-8
Transfer-Encoding chunked
Connection keep-alive
Vary Accept-Encoding
Date Mon, 22 Jan 2018 22:08:06 GMT
x-server-id wormholesource011130145253.center.eu13
Vary Origin, Ali-Detector-Type, Ip-Country-Id
Cache-Control max-age=0, s-maxage=3600
X-Response-Time 58
x-readtime 58
X-ETag-Caculator Tengine
ETag W/ a8eb3b4bee46c0795559be36bd7b95d6e
Via cache12.l2de1[459,200-0,M], cache61.l2de1[460,0], bcache4.by1[0,200-0,H], bcache4.by1[0,0]
Age 228
X-Cache HIT TCP_MEM_HIT dirn:-2:-2 mlen:-1
X-Swift-SaveTime Mon, 22 Jan 2018 22:08:06 GMT
X-Swift-CacheTime 3600
Timing-Allow-Origin *
EagleId d462b29015166591141463513e
Content-Encoding gzip

Meta Tags

title="您查看的页面找不到了!-理想生活上天猫"
charset="utf-8"
name="renderer" content="webkit"
http-equiv="X-UA-Compatible" content="IE=Edge"
name="spm-id" content="a2233.7711963"

Load Info

page size37201
load time (s)0.098127
redirect count0
speed download83167
server IP212.98.178.254


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