51dzw.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 3140 ms crawled 2026-05-18

CN · 101.227.22.91 · AS4811 China Telecom Group

Reputation 100/100

Classifying

HTML metadata

Title: 51电子网-IC电子元器件|IC电子元件|二三极管|电子管交易网站|IC交易网|WWW.51DZW.COM
Description: 51电子网(51dzw.com)是国内最专业的IC电子交易平台，集IC、电子元器件、二三极管、电子/容管等供求信息，拥有五千万条IC型号和四百多万的电子元器件PDF资料。51电子网立足于电子元件供应商和电子产品生产商服务，为各类电子元件供应商提供发布供应信息平台，也为电子产品生产商提供采平台和自己的产品展示平台。

Technology

Server: Tengine

Third-party hosts loaded (1)

wpa.qq.com×2

Registration

Registrar

Xin Net Technology Corporation

Created

2006-05-16

Expires

2033-05-16 2554 days left

Updated

2025-04-02

Name servers

f1g1ns1.dnspod.net
f1g1ns2.dnspod.net

DNS records live

NS

f1g1ns1.dnspod.net
f1g1ns2.dnspod.net

CNAME

51dzw.com.w.kunlunaq.com

Email authentication no MX

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

Certificate (current)

Sectigo Public Server Authentication CA DV R36

from 2025-07-21 to 2026-07-22

Expires in 64 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://www.51dzw.com/

present

strict-transport-security

findings

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

Header values

strict-transport-security: max-age=31536000