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51cedu.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-19 · ok HTTP/1.1 200 1379 ms crawled 2026-05-19

CN · 114.55.7.27 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 100/100

Classifying

HTML metadata

Title
开锐教育-学历提升-职称评定-职业资格培训-积分入户
Description
开锐教育提供学历提升、职称评定、职业资格培训、积分入户等教育培训考试服务,服务囊括了职称申报、资格证考试、国家开放大学、自考本科、成人高考、网络教育等项目。
Language
en

Technology

Server
nginx
CMS
Gatsby

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2014-02-18
Expires
2027-02-18 274 days left
Updated
2025-02-07
Name servers
  • dns19.hichina.com
  • dns20.hichina.com

DNS records live

NS
  • dns19.hichina.com
  • dns20.hichina.com

Email authentication no MX

SPF
v=spf1 include:spf.mxhichina.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2025-05-26 to 2026-05-26
Expires in 6 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://51cedu.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

Links to (6)

Linked from (2)

See all sites whose homepage links to 51cedu.com →