indexo.dev

wangcong.org

.org crawl

First seen 2026-04-17 · Last seen 2026-05-08 · ok HTTP/1.1 200 4142 ms crawled 2026-05-12

US · 185.199.110.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
My Blog | A Geek’s Page
Description
Cong Wang’s Personal Blog Posts
Language
en
Generator
Jekyll v3.10.0
Canonical
https://wangcong.org/
Feeds

Open Graph

url
https://wangcong.org/
title
My Blog
locale
en_US
site name
A Geek’s Page
description
Cong Wang’s Personal Blog Posts

Technology

CDN
Fastly
Server
GitHub.com

Social

Registration

Registrar
GoDaddy.com, LLC
Created
2007-03-09
Expires
2035-03-09 3214 days left
Updated
2026-02-19
Name servers
  • ns63.domaincontrol.com
  • ns64.domaincontrol.com

DNS records live

NS
  • ns63.domaincontrol.com
  • ns64.domaincontrol.com
MX
  • 0 smtp.secureserver.net
  • 10 mailstore1.secureserver.net
TXT
  • D2559741

Email authentication weak

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

Certificate (current)

R12
from 2026-05-01 to 2026-07-30
Expires in 70 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://wangcong.org/

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

Links to (1)

Linked from (1)