57zhihui.com

HTML metadata

Technology

CDN

Cloudflare

Registration

Registrar

Metaregistrar BV

Created

2025-12-12

Expires

2026-12-12 184 days left

Updated

2026-05-22

Name servers

• dave.ns.cloudflare.com
• rihana.ns.cloudflare.com

DNS records live

NS

• dave.ns.cloudflare.com
• rihana.ns.cloudflare.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 35/100 Checked over plain HTTP: http://www.57zhihui.com/

findings

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

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