indexo.dev

jiuliankeji.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 7055 ms crawled 2026-05-19

CN · 122.51.98.25 · AS45090 Shenzhen Tencent Computer Systems Company Limited

Reputation 92/100 no dmarc policy

Classifying

Technology

Server
nginx

Registration

Registrar
DNSPod, Inc.
Created
2017-11-10
Expires
2026-11-10 173 days left
Updated
2025-11-16
Name servers
  • f1g1ns1.dnspod.net
  • f1g1ns2.dnspod.net

DNS records live

NS
  • f1g1ns1.dnspod.net
  • f1g1ns2.dnspod.net
MX
  • 5 mxbiz1.qq.com
  • 5 mxbiz2.qq.com

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-18 to 2026-08-16
Expires in 87 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://jiuliankeji.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

Linked from (1)