DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=bluestarsteelbuildings.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 04, 2026
Valid Until
May 05, 2026 82 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
9C:9C:D4:66:9A:BE:E1:83:C7:DE:E3:0B:02:E2:81:4B:43:99:55:1B:4D:33:70:4E:01:B4:BB:7C:59:84:67:E0
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
hidefumi.com *.hidefumi.com *.apps.hidefumi.com *.hostmaster.hidefumi.com

Other domains in certificate

*.admin.bbyname.com *.api.bbyname.com *.app.bbyname.com *.assets.bbyname.com *.autodiscover.bbyname.com bbyname.com *.bbyname.com *.cpanel.bbyname.com *.demo.bbyname.com *.dev.bbyname.com *.hostmaster.bbyname.com *.htpeeremote.bbyname.com *.mail.bbyname.com *.rds.bbyname.com *.rdweb.bbyname.com *.remote.bbyname.com *.shop.bbyname.com *.sistema.bbyname.com *.test.bbyname.com *.webdisk.bbyname.com *.webmail.bbyname.com *.wp.bbyname.com *.www.bbyname.com
biogas.com.au *.biogas.com.au
bluestarsteelbuildings.com *.bluestarsteelbuildings.com *.oiafpwebmail.bluestarsteelbuildings.com *.website-bad66e15.bluestarsteelbuildings.com
bplus.bet *.bplus.bet *.teste.bplus.bet *.vemdbet.bplus.bet
*.braidsforwomen.finansbilgi.net finansbilgi.net *.finansbilgi.net *.random.finansbilgi.net *.sosyal.finansbilgi.net *.stayglam.finansbilgi.net *.webmail.finansbilgi.net *.ww38.finansbilgi.net *.www.finansbilgi.net
gloriacampos.me *.gloriacampos.me *.ww25.gloriacampos.me
gosan.tech *.gosan.tech
*.film.hizmeti.com hizmeti.com *.hizmeti.com *.xn--23ulam-t9a18a.hizmeti.com *.xn--ulaim-ldb.hizmeti.com *.xn--ulam-nza9y.hizmeti.com
*.landing.maharashtranavudyojak.org maharashtranavudyojak.org *.maharashtranavudyojak.org *.ww38.maharashtranavudyojak.org
olyascans.xyz *.olyascans.xyz
rondo.live *.rondo.live
*.backend.starmarket.live *.backendshop.starmarket.live *.dev.starmarket.live *.go.starmarket.live *.shop.starmarket.live starmarket.live *.starmarket.live
*.attwww.tarbiyah.com *.connect.tarbiyah.com *.desktop.tarbiyah.com tarbiyah.com *.tarbiyah.com
*.mail.tartamella.com tartamella.com *.tartamella.com
*.dev.visimo.com *.mwa.visimo.com *.rustore.visimo.com *.search.visimo.com visimo.com *.visimo.com *.vpn.visimo.com
workerscomplawyer639445.icu *.workerscomplawyer639445.icu *.ww25.workerscomplawyer639445.icu