cdeledu.com

.com crawl dns

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 6747 ms crawled 2026-05-18

CN · 59.151.113.65 · AS23724 IDC, China Telecommunications Corporation

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: 正保远程教育-专注职业教育和服务
Description: 正保远程教育（China Distance Education Holdings Ltd., CDEL）成立于2000年，为北京市高新技术企业、联合国教科文组织技术与职业教育培训在中国的试点项目。经教育部批准，常年开展面向多行业、多领域的网络教育，并提供远程多媒体网络教育平台系列产品。

Technology

Server: openresty

Contact

Phone

Registration

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

Created

2008-01-21

Expires

2030-01-21 1342 days left

Updated

2025-04-16

Name servers

ns1.cdeledu.com
ns2.cdeledu.com

DNS records live

NS

ns1.cdeledu.com
ns2.cdeledu.com

MX

10 mail.cdeledu.com

Email authentication weak

SPF: v=spf1 ip4:59.151.109.48 ip4:59.151.113.106 include:spf.icoremail.net -all
strict (-all)
DMARC: not published
DKIM: no key found at common selectors

Certificate (current)

GlobalSign RSA OV SSL CA 2018

from 2025-07-11 to 2026-08-12

Expires in 85 days

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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