DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=blizzrd.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
February 03, 2026
Valid Until
May 04, 2026 86 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
AC:FD:9D:59:CB:C3:00:B1:48:42:9C:CF:8A:08:2C:E0:B1:21:79:24:82:05:90:65:81:BE:E1:DC:11:65:9B:B7
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
kritnu.com *.kritnu.com *.ciscoasa.kritnu.com *.cust4.kritnu.com *.office.kritnu.com *.vpn1.kritnu.com *.ww41.kritnu.com

Other domains in certificate

airlineoxygencouncil.org *.airlineoxygencouncil.org *.blogs.airlineoxygencouncil.org *.www.airlineoxygencouncil.org
andavar.com *.andavar.com *.forums.andavar.com *.rd.andavar.com
*.billing.blizzrd.com blizzrd.com *.blizzrd.com *.cdn.blizzrd.com *.classic.blizzrd.com *.com6.blizzrd.com *.flow.blizzrd.com *.forums.blizzrd.com *.info.blizzrd.com *.jobs.blizzrd.com *.mail03.blizzrd.com *.newsletter.blizzrd.com *.ow.blizzrd.com *.skyline.blizzrd.com *.ur.blizzrd.com *.wowclassic.blizzrd.com *.ww2.blizzrd.com
clubpenguin.au *.clubpenguin.au *.wildcard.clubpenguin.au
collectcard.com *.collectcard.com *.wildcard.collectcard.com *.ww38.collectcard.com
colonialpennlifeinsurance.com *.colonialpennlifeinsurance.com *.random.colonialpennlifeinsurance.com *.wildcard.colonialpennlifeinsurance.com
colony.au *.colony.au *.wildcard.colony.au *.ww16.colony.au
coloradans.info *.coloradans.info *.random.coloradans.info *.wildcard.coloradans.info
coloradans.net *.coloradans.net *.wildcard.coloradans.net
familyforce.us *.familyforce.us
*.autodiscover.getdoppel.com *.back.getdoppel.com getdoppel.com *.getdoppel.com *.sitemaps.getdoppel.com *.ww7.getdoppel.com *.ww99.getdoppel.com *.www.getdoppel.com
*.iaph-in.iaph.online iaph.online *.iaph.online *.www.iaph.online
*.cpcalendars.jugos.website *.integration.jugos.website jugos.website *.jugos.website
kofke.com *.kofke.com *.rds1.kofke.com *.ww16.kofke.com *.ww25.kofke.com
*.amazon.maliu.com maliu.com *.maliu.com *.secure.maliu.com *.store.maliu.com
*.aqualuxeofficial.manajemen.com *.keryn.manajemen.com manajemen.com *.manajemen.com *.tmfxpdev.manajemen.com
rundleanddorey.co.uk *.rundleanddorey.co.uk *.ww16.rundleanddorey.co.uk