s4u1.com

HTML metadata

Technology

Server

nginx

CMS

Gatsby

Registration

Registrar

eName Technology Co., Ltd.

Created

2026-04-03

Expires

2027-04-03 290 days left

Updated

2026-04-04

Name servers

• ns1.judns.com
• ns2.judns.com

DNS records live

NS

• ns1.julydns.com
• ns2.julydns.com

Email authentication no MX

SPF

not published

DMARC

not published

DKIM

no key found at common selectors

Certificate (current) wrong cert

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://s4u1.com/

findings

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

Links to (40)

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Linked from (34)

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