tzhao.io

.io crawl

First seen 2026-05-08 · Last seen 2026-05-08 · ok HTTP/1.1 200 3087 ms crawled 2026-05-15

US · 185.199.111.153 · AS54113 Fastly, Inc.

Reputation 87/100 weak security headers no dmarc policy

Classifying

HTML metadata

Title
Tong Zhao | 赵通
Generator
jemdoc, see http://jemdoc.jaboc.net/

Technology

CDN
Fastly
Server
GitHub.com

Third-party hosts loaded (2)

  • cdn.clustrmaps.com×1
  • cdnjs.cloudflare.com×1

Social

DNS records live

NS
  • ns-cloud-d1.googledomains.com
  • ns-cloud-d2.googledomains.com
  • ns-cloud-d3.googledomains.com
  • ns-cloud-d4.googledomains.com
MX
  • 10 mx01.mail.icloud.com
  • 10 mx02.mail.icloud.com
TXT
  • apple-domain=esZ3jRqSiG17iAH8

Email authentication weak

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

Certificate (current)

R13
from 2026-04-30 to 2026-07-29
Expires in 71 days

HTTP security headers

Header hygiene 30/100 Checked live page: https://tzhao.io/

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

Links to (15)