dzdu.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 7811 ms crawled 2026-05-18

CN · 61.183.254.76 · AS4134 Chinanet

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title: 电子技术论坛 _ 家电维修技术论坛 _ 家电维修论坛_家电论坛 _ 家电维修 _ 维修论坛 - www.dzdu.com
Description: 家电维修技术论坛是家电维修专业技术论坛简称家电维修论坛或家电论坛：提供家电维修技术培训、家电维修资料下载、家电维修视频教程、家电维修电路学习的家电维修技术论坛；交流共享各类家电电路图纸、家电技术资料、家电维修手册、家电维修数据的家电维修技术资料分享网站(www.dzdu.com)。
Generator: Discuz! X3.4

Technology

Server: nginx
CMS: Gatsby

Third-party hosts loaded (1)

cpro.baidustatic.com×1

Registration

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

Created

2004-12-22

Expires

2026-12-22 217 days left

Updated

2025-11-22

Name servers

f1g1ns1.dnspod.net
f1g1ns2.dnspod.net

DNS records live

NS

f1g1ns1.dnspod.net
f1g1ns2.dnspod.net

MX

10 mxbiz2.qq.com
10 mxdomain.qq.com
5 mxbiz1.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)

TrustAsia RSA DV TLS CA G2

from 2024-03-30 to 2025-03-31

Expired 414 days ago

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 70/100 Checked live page: https://www.dzdu.com/

present

strict-transport-security
content-security-policy

findings

missing frame protection
missing content type protection
missing Referrer Policy
missing Permissions Policy

Header values

content-security-policy: upgrade-insecure-requests
strict-transport-security: max-age=31536000; includeSubDomains; preload