DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=dhu.au
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
November 27, 2025
Valid Until
February 25, 2026 35 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
A3:AF:F5:AE:5B:0E:C8:17:12:CC:65:D4:CE:3D:90:B4:77:2C:AD:32:EA:67:FA:1C:38:FA:95:B5:62:B5:7D:3D
Alternative Names
89 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

89 domains
simafex.com *.simafex.com *.cdn.simafex.com *.cf-aw.simafex.com *.dev.simafex.com *.dlab.simafex.com *.everywhere.simafex.com *.hidden.simafex.com *.hostmaster.simafex.com *.net.simafex.com *.ops.simafex.com *.plsstg.simafex.com *.psb-stg.simafex.com *.qustom.simafex.com *.random.simafex.com *.seabc.simafex.com *.static.simafex.com *.steinhardt.simafex.com *.trabajo.simafex.com *.www.simafex.com

Other domains in certificate

asphar.au *.asphar.au
bahu.au *.bahu.au
biglots.au *.biglots.au
bizrate.au *.bizrate.au
dentalbraces.au *.dentalbraces.au
dhu.au *.dhu.au
ecj.au *.ecj.au
esec.au *.esec.au
evite.au *.evite.au
iida.au *.iida.au
ipko.au *.ipko.au
itglue.au *.itglue.au
jxg.au *.jxg.au
maldini.au *.maldini.au
melda.au *.melda.au
*.664aff95-bd32-4106-9b5d-103a955c971a.merchantsubereats.com *.api.merchantsubereats.com *.dashboard.merchantsubereats.com merchantsubereats.com *.merchantsubereats.com *.ww25.merchantsubereats.com
nlj.au *.nlj.au
oman.au *.oman.au
otomoto.au *.otomoto.au
*.41910.read-the-article.com *.bbvib.read-the-article.com *.biot2.read-the-article.com *.cbnks.read-the-article.com *.iizpw.read-the-article.com *.kqfbb.read-the-article.com *.mbeag.read-the-article.com *.mrtp8.read-the-article.com *.random.read-the-article.com *.rcwji.read-the-article.com read-the-article.com *.read-the-article.com
*.hostmaster.teacherspayeachers.com *.mx7.teacherspayeachers.com *.ns1.teacherspayeachers.com *.ns2.teacherspayeachers.com teacherspayeachers.com *.teacherspayeachers.com
vergil.au *.vergil.au
*.bbs.wayfa8ir.com *.login.wayfa8ir.com *.m.wayfa8ir.com wayfa8ir.com *.wayfa8ir.com
zenhub.au *.zenhub.au