codedefault.com

.com crawl

First seen 2026-04-14 · Last seen 2026-05-11 · ok HTTP/1.1 200 1485 ms crawled 2026-05-08

CN · 42.193.14.93 · AS45090 Shenzhen Tencent Computer Systems Company Limited

Reputation 49/100 listed in spam blocklist weak security headers dmarc monitor-only

Classifying

HTML metadata

Title: 专注C#,.NET Core,.NET 6,.NET 7开发技术的.NET社区/论坛/网站 | 码友网
Description: .NET 6,.NET 7,C#/.NET,ASP.NET Core编程基础入门教程,C#自学去哪里？.NET编程基础入门,.NET编程自学去哪里？学习.NET编程,学习C#编程有哪些教程和资源,.NET|.NET Core|ASP.NET Core 学习资源网站,专注C#开发,.NET开发,ASP.NET,SQL SERVER,MYSQL,Entity Framework,WINFORM,多线程,HTML,CSS,JAVASCRIPT,Bootstrap,Angularjs,jQuery,后台模板,组件等程序开发资源,C#新手/初学者/工程师的进阶之路

Technology

Server: nginx

Analytics

Google Tag Manager

Third-party hosts loaded (1)

www.googletagmanager.com×1

Contact

Phone

483350228

Registration

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

Created

2017-08-12

Expires

2026-08-12 85 days left

Updated

2025-08-10

Name servers

dns10.hichina.com
dns9.hichina.com

DNS records live

NS

dns10.hichina.com
dns9.hichina.com

MX

10 mxbiz2.qq.com
5 mxbiz1.qq.com

TXT

MS=ms94951726

Email authentication partial

SPF: v=spf1 include:spf.mail.qq.com ~all
softfail (~all)
DMARC: v=DMARC1; p=none;
policy: none (monitoring only)
DKIM: no key found at common selectors

Certificate (current)

R12

from 2026-05-02 to 2026-07-31

Expires in 73 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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