indexo.dev

njkeystone.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1835 ms crawled 2026-05-19

CN · 222.73.219.193 · AS4812 China Telecom Group

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
南京冠石科技股份有限公司

Technology

Server
AH193

Contact

Phone

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2010-01-21
Expires
2030-01-21 1341 days left
Updated
2025-02-08
Name servers
  • dns7.hichina.com
  • dns8.hichina.com

DNS records live

NS
  • dns7.hichina.com
  • dns8.hichina.com
MX
  • 10 mx.263.net
  • 5 mxw.263.net

Email authentication weak

SPF
v=spf1 include:spf.263.net -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2026-03-19 to 2026-10-04
Expires in 136 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 45/100 Checked live page: https://njkeystone.com/

present
  • strict-transport-security
findings
  • short HSTS max-age
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=0

Linked from (1)