indexo.dev

shuxueji.com

.com crawl

First seen 2026-04-20 · Last seen 2026-05-10 · ok HTTP/1.1 200 820 ms crawled 2026-05-13

HK · 101.32.216.229 · AS132203 Tencent Building, Kejizhongyi Avenue

Reputation 75/100 wrong cert

Classifying

HTML metadata

Title
数学百科
Language
en-US

Technology

Server
nginx
CMS
Gatsby
Analytics
  • Google Tag Manager
Ads
  • Google AdSense

Third-party hosts loaded (2)

  • pagead2.googlesyndication.com×1
  • www.googletagmanager.com×1

Registration

Registrar
Cloudflare, Inc.
Created
2023-03-23
Expires
2027-03-23 307 days left
Updated
2026-02-21
Name servers
  • kristin.ns.cloudflare.com
  • mario.ns.cloudflare.com

DNS records live

NS
  • kristin.ns.cloudflare.com
  • mario.ns.cloudflare.com

Email authentication no MX

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

Certificate (current) wrong cert

invalid
from 2025-04-07 to 2026-04-07
Expired 43 days ago

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked over plain HTTP: http://shuxueji.com/

present
  • x-frame-options
  • x-content-type-options
  • referrer-policy
  • cross-origin-opener-policy
findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing Permissions Policy
Header values
referrer-policy
same-origin
x-frame-options
DENY
x-content-type-options
nosniff
cross-origin-opener-policy
same-origin

Links to (1)

Linked from (1)