jianshe99.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 3536 ms crawled 2026-05-18

CN · 59.151.113.15 · AS23724 IDC, China Telecommunications Corporation

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title: 建设工程教育网_正保职业教育_二建培训_一级建造师培训_一级造价师培训_监理工程师培训_咨询工程师培训
Description: 建设工程教育网官网（建工网校）-正保远程教育集团旗下建设工程考试辅导培训网站,常年开展一级建造师,二级建造师,一级造价工程师,监理工程师,咨询工程师,房地产估价师等考试培训辅导,以及考试报名条件时间,成绩查询,模拟试题,复习资料等信息。
Canonical: //www.jianshe99.com

Technology

Server: Tengine

Third-party hosts loaded (3)

img.cdeledu.com×6
analysis.cdeledu.com×1
csms.cdeledu.com×1

Contact

Phone

Registration

Registrar

Alibaba Cloud Computing (Beijing) Co., Ltd.

Created

2005-06-05

Expires

2028-06-05 747 days left

Updated

2025-02-10

Name servers

ns1.cdeledu.com
ns2.cdeledu.com

DNS records live

NS

ns1.cdeledu.com
ns2.cdeledu.com

MX

10 mx.jianshe99.com

Email authentication weak

SPF: not published
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.jianshe99.com/

findings

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