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 Sat, 20 Oct 2018 07:09:47 GMT
Vary Origin, Ali-Detector-Type, Ip-Country-Id
x-server-id wormholesource011011049019.na62
realpath page/portal/act/404
Cache-Control max-age=0, s-maxage=3600
ETag W/ 381a-JSP6vCZdBNgFfeVAGyFeMPcbtM8
x-readtime 223
x-via cn300.l1, cache6.cn300, l2st4-2.l2, cache8.l2st4-2, wormholesource011011049019.na62
EagleEye-TraceId dac92e4415400193870232364e
Timing-Allow-Origin *, *
Via cache8.l2st4-2[0,200-0,H], cache8.l2st4-2[0,0], cache10.cn672[191,200-0,M], cache6.cn672[193,0]
Age 803
Ali-Swift-Global-Savetime 1540020190
X-Cache MISS TCP_REFRESH_MISS dirn:9:284834245
X-Swift-SaveTime Sat, 20 Oct 2018 07:23:10 GMT
X-Swift-CacheTime 2797
EagleId 78dd529a15400201899875693e
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 size14658
load time (s)2.225144
redirect count0
speed download2277
server IP120.221.82.230


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