rystudy.com

HTML metadata

Technology

Server

openresty

Registration

Registrar

Metaregistrar BV

Created

2026-01-14

Expires

2027-01-14 225 days left

Updated

2026-03-16

Name servers

• a10.share-dns.com
• b10.share-dns.net

DNS records live

NS

• a.share-dns.com
• b.share-dns.net

CNAME

• gd28c8e.cdn.eduo.net

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://rystudy.com/

findings

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

Links to (9)

• yfd360.com×1
• wingming.net×1
• wellsbaihui.com×1
• siyecaodg.com×1
• sdsmejx.com×1
• mlbstage.com×1
• jzscky.com×1
• fuyangkqn.com×1
• dibainian.com×1

Linked from (11)

• sdzygyy.com×1
• hblggd.com×1
• lhkyxfgd.com×1
• szhkdz.com×1
• invstry.com×1
• zfrzdb.com×1
• hzdanfei.com×1
• ycawjy.com×1
• sylusen.com×1
• ahhelu.com×1
• wxsefo.com×1