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jiangsuruihua.com

.com crawl

First seen 2026-05-12 · Last seen 2026-05-12 · ok HTTP/1.1 200 23927 ms crawled 2026-05-18

CN · 222.73.219.193 · AS4812 China Telecom Group

Reputation 87/100 weak security headers no dmarc policy

sector other type homepage

HTML metadata

Title
江苏瑞华投资控股集团有限公司
Description
江苏瑞华投资控股集团有限公司

Technology

Server
AH193

Registration

Registrar
Xiamen 35.com Information Co., Ltd.
Created
2007-11-08
Expires
2029-11-08 1268 days left
Updated
2025-05-13
Name servers
  • ns1.35.net
  • ns2.35.net
  • ns3.35.net
  • ns4.35.net

DNS records live

NS
  • ns1.35.net
  • ns2.35.net
  • ns3.35.net
  • ns4.35.net
MX
  • 1 mx1.feishu.cn
  • 10 mx3.feishu.cn
  • 5 mx2.feishu.cn
TXT
  • verification-code-site-App_feishu=9PI9ar7umVaXEfMu2GO3

Email authentication weak

SPF
v=spf1 +include:_netblocks.m.feishu.cn -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificates

Loading certificate

HTTP security headers

Header hygiene 45/100 Checked live page: https://jiangsuruihua.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

Links to (1)

Linked from (1)