zhangyinda.com

.com crawl

First seen 2026-04-13 · Last seen 2026-05-12 · ok HTTP/1.1 200 838 ms crawled 2026-05-07

US · 192.30.252.153 · AS36459 GitHub, Inc.

Reputation 62/100 wrong cert weak security headers no dmarc policy

sector other type homepage

HTML metadata

Title: Yinda Zhang | Google
Description: Yinda Zhang
Language: en

Technology

CDN: Fastly
Server: GitHub.com

Third-party hosts loaded (3)

maxcdn.bootstrapcdn.com×3
cdnjs.cloudflare.com×1
code.jquery.com×1

Social

Registration

Registrar

Squarespace Domains II LLC

Created

2018-11-27

Expires

2026-11-27 190 days left

Updated

2025-11-12

Name servers

ns-cloud-b1.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b3.googledomains.com
ns-cloud-b4.googledomains.com

DNS records live

NS

ns-cloud-b1.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b3.googledomains.com
ns-cloud-b4.googledomains.com

MX

10 mxa.mailgun.org
10 mxb.mailgun.org

Email authentication partial

SPF: v=spf1 include:mailgun.org ~all
softfail (~all)
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 53 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 30/100 Checked live page: https://www.zhangyinda.com/

findings

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