indexo.dev

gzke.com

.com crawl

First seen 2026-04-24 · Last seen 2026-05-18 · ok HTTP/1.1 200 6811 ms crawled 2026-05-18

CN · 8.134.56.142 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
公众课-中国教育培训门户网站
Description
公众课【gzke.com】是中国教育培训门户网站，介绍国内知名大学及中小学，以及各类培训教育机构，致力为公众提供学习教育的平台。

Technology

Server
Microsoft-IIS

Third-party hosts loaded (1)

  • sdk.51.la×1

Registration

Registrar
Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Created
2006-09-05
Expires
2027-09-05 474 days left
Updated
2026-04-14
Name servers
  • dns19.hichina.com
  • dns20.hichina.com

DNS records live

NS
  • dns19.hichina.com
  • dns20.hichina.com

Email authentication weak

SPF
v=spf1 include:spf.qiye.aliyun.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2026-03-30 to 2026-06-28
Expires in 40 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.gzke.com/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (7)

Linked from (1)