indexo.dev

zhanhao.org

.org crawl

First seen 2026-05-08 · Last seen 2026-05-08 · ok HTTP/1.1 200 593 ms crawled 2026-05-15

US · 192.30.252.153 · AS36459 GitHub, Inc.

Reputation 70/100 wrong cert weak security headers

Classifying

HTML metadata

Title
Zhanhao Chen's homepage
Language
en

Technology

CDN
GitHub Pages
Server
GitHub.com
Analytics
  • Google Tag Manager

Third-party hosts loaded (2)

  • ajax.googleapis.com×1
  • www.googletagmanager.com×1

Social

Contact

Phone

Registration

Registrar
GoDaddy.com, LLC
Created
2017-07-23
Expires
2026-07-23 64 days left
Updated
2025-09-06
Name servers
  • ns55.domaincontrol.com
  • ns56.domaincontrol.com

DNS records live

NS
  • ns55.domaincontrol.com
  • ns56.domaincontrol.com

Email authentication no MX

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

Certificate (current) wrong cert

Sectigo Public Server Authentication CA DV R36
from 2026-04-14 to 2026-07-13
Expires in 54 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://zhanhao.org/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (4)

Linked from (1)