indexo.dev

zhishi-shu.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 2777 ms crawled 2026-05-18

CN · 119.45.237.210 · AS45090 Shenzhen Tencent Computer Systems Company Limited

Reputation 70/100 wrong cert weak security headers

Classifying

HTML metadata

Title
知识树 —— 您的专属知识库
Description
知识树是一个硬核知识平台，聚合各个领域的知识内容，构建知识体系，为用户提供一个学习、提升的知识空间，从而提升个人综合竞争力。
Language
en

Technology

Server
nginx

Third-party hosts loaded (1)

  • cdn.bootcdn.net×3

Contact

Email
Phone

Registration

Registrar
Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)
Created
2025-06-05
Expires
2026-06-05 15 days left
Updated
2025-06-05
Name servers
  • dns3.hichina.com
  • dns4.hichina.com

DNS records live

NS
  • dns3.hichina.com
  • dns4.hichina.com
Verified for
  • Google

Email authentication no MX

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current) wrong cert

E8
from 2026-03-16 to 2026-06-14
Expires in 24 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.zhishi-shu.com/

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

Linked from (2)