jiankongzhan.com

HTML metadata

Technology

Server

nginx

Registration

Registrar

SNAPNAMES 52, LLC

Created

2026-02-24

Expires

2027-02-24 248 days left

Updated

2026-04-30

Name servers

• a.dnspod.com
• b.dnspod.com
• c.dnspod.com

DNS records live

NS

• a.dnspod.com
• b.dnspod.com
• c.dnspod.com

CNAME

• e17bc769.claudecdn.com

Email authentication no MX

SPF

not published

DMARC

not published

DKIM

no key found at common selectors

Certificate (current)

Full certificate history on crt.sh ↗

HTTP security headers

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

findings

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

Links to (30)

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