indexo.dev

52dandong.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-16 · ok HTTP/1.1 200 2293 ms crawled 2026-05-07

CN · 43.228.77.72 · AS134765 CHINANET Yunnan province IDC1 network

Reputation 70/100 wrong cert weak security headers

Classifying

HTML metadata

Title
单洞科技 - 致力于企业级信息传播服务
Description
单洞科技(www.52dandong.com)致力于企业级信息传播服务，在云计算、大数据、移动互联网、智慧城市、智能工业、信息化、智能家居领域提供实用的资讯服务。

Technology

Server
nginx
CMS
Gatsby

Contact

Phone

Registration

Registrar
Hefei Juming Network Technology Co., Ltd
Created
2007-08-28
Expires
2026-08-28 100 days left
Updated
2025-08-26
Name servers
  • gaggle.dnspod.net
  • mole.dnspod.net

DNS records live

NS
  • gaggle.dnspod.net
  • mole.dnspod.net

Email authentication no MX

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

Certificate (current) wrong cert

—
from 2023-02-22 to 2033-02-19
Expires in 2467 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://www.52dandong.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (43)

Linked from (40)