indexo.dev

lets.com

.com crawl

First seen 2026-05-27 · Last seen 2026-05-30 · ok HTTP/1.1 200 2270 ms crawled 2026-05-30

CN · 218.104.143.189 · AS4837 CHINA UNICOM China169 Backbone

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
lets-site
Description
垒知控股集团股份有限公司，前身系厦门市建筑科学研究院集团股份有限公司，于1980年经政府批准设立，2010年在中国深圳证券交易所上市（股票代码：002398），是中国首家整体上市的建筑科研机构.
Language
en

Technology

Server
nginx

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2008-10-18
Expires
2028-10-18 870 days left
Updated
2026-04-01
Name servers
  • dns7.hichina.com
  • dns8.hichina.com

DNS records live

NS
  • dns7.hichina.com
  • dns8.hichina.com
MX
  • 10 mxbiz1.qq.com
  • 20 mxbiz2.qq.com

Email authentication weak

SPF
v=spf1 include:spf.mail.qq.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

ZeroSSL RSA DV SSL CA 2
from 2026-05-21 to 2026-08-20
Expires in 80 days

Full certificate history on crt.sh ↗

HTTP security headers

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

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

Linked from (1)