DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=ruframe.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 01, 2026
Valid Until
May 02, 2026 82 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
DF:FF:EC:3D:25:73:74:A1:AE:08:53:82:74:03:BE:84:CE:02:36:3D:E8:D4:CC:7C:54:0E:9D:D9:34:45:BC:A2
Alternative Names
90 domains

Security Configuration

TLS Protocols
TLS 1.2 TLS 1.3
Forward Secrecy
Supported (Modern clients use PFS)

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
  • • Add X-Content-Type-Options: nosniff
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

CAA Records (Certificate Authority Authorization)

CAA Records
Not Configured (Any CA can issue certificates)
CAA Issues
  • • No CAA records configured - any CA can issue certificates
Recommendations
  • • Implement CAA records to restrict which CAs can issue certificates for your domain
  • • This adds an extra layer of security against unauthorized certificate issuance
  • • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
  • • Consider adding 'iodef' record to receive security incident reports

Subject Alternative Names

90 domains
sellens.com *.sellens.com *.ww17.sellens.com

Other domains in certificate

4ree.life *.4ree.life *.gcdt.4ree.life *.iw4hu.4ree.life *.j38rg.4ree.life *.xch3.4ree.life *.yw7ff.4ree.life
*.aits.civ.uk civ.uk *.civ.uk *.demo.civ.uk *.dev.civ.uk *.hostmaster.civ.uk *.magento.civ.uk *.old.civ.uk *.staging.civ.uk *.test.civ.uk *.www.civ.uk
firemanga.to *.firemanga.to *.ww25.firemanga.to *.ww33.firemanga.to *.ww38.firemanga.to
*.8.freedsound.pro *.backend.freedsound.pro *.dev.freedsound.pro freedsound.pro *.freedsound.pro *.hostmaster.freedsound.pro *.mww7.freedsound.pro *.ww.freedsound.pro *.ww38.freedsound.pro *.ww7.freedsound.pro
goku.sc *.goku.sc *.like.goku.sc *.ww25.goku.sc *.ww38.goku.sc
*.admin.mangamiso.net *.anime.mangamiso.net *.app.mangamiso.net *.cdn-3.mangamiso.net *.cdn-5.mangamiso.net mangamiso.net *.mangamiso.net *.members.mangamiso.net *.pop.mangamiso.net *.portal.mangamiso.net *.shop.mangamiso.net *.webdisk.mangamiso.net *.ww12.mangamiso.net *.ww7.mangamiso.net *.www.mangamiso.net
*.au.migrationagentmelbourne.com.au *.com.migrationagentmelbourne.com.au *.glamourandgrace.migrationagentmelbourne.com.au *.glamourandgracebridal.migrationagentmelbourne.com.au *.ilybox.migrationagentmelbourne.com.au *.melbournemigrationagent.migrationagentmelbourne.com.au *.melbournemigrationagents.migrationagentmelbourne.com.au migrationagentmelbourne.com.au *.migrationagentmelbourne.com.au *.migrationagents.migrationagentmelbourne.com.au *.migrationagentsmelbourne.migrationagentmelbourne.com.au *.migrationlawyers.migrationagentmelbourne.com.au *.nobleparkdentist.migrationagentmelbourne.com.au *.studystudy.migrationagentmelbourne.com.au *.supercoachscores.migrationagentmelbourne.com.au *.sydney.migrationagentmelbourne.com.au *.tolegal.migrationagentmelbourne.com.au *.victoriaconveyancing.migrationagentmelbourne.com.au *.vietnamcurry.migrationagentmelbourne.com.au *.ww84.migrationagentmelbourne.com.au
*.nft.ptaguide.org ptaguide.org *.ptaguide.org
*.cms.ruframe.com *.imap2.ruframe.com *.mx.ruframe.com *.remote.ruframe.com ruframe.com *.ruframe.com *.secure.ruframe.com *.smtps.ruframe.com
schwangere.com *.schwangere.com *.ww25.schwangere.com