indexo.dev

walkclass.com

.com crawl

First seen 2026-04-18 · Last seen 2026-05-15 · ok HTTP/1.1 200 5418 ms crawled 2026-05-12

CN · 120.27.220.123 · AS37963 Hangzhou Alibaba Advertising Co.,Ltd.

Reputation 87/100 weak security headers no dmarc policy

Classifying

Registration

Registrar
Alibaba Cloud Computing (Beijing) Co., Ltd.
Created
2015-11-03
Expires
2028-11-03 898 days left
Updated
2025-06-27
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
CNAME
  • xuebei-prd-slb.walkclass.com

Email authentication weak

SPF
v=spf1 include:spf.mail.qq.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

Encryption Everywhere DV TLS CA - G2
from 2025-11-04 to 2026-12-06
Expires in 200 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://walkclass.com/dataCenter/#/home/LoginPage

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

Linked from (2)