DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=reproinst.org
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
December 09, 2025
Valid Until
March 09, 2026 48 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
2F:55:C6:7C:1F:AA:5A:B9:DC:EC:47:61:14:22:A0:DF:3F:E5:52:1A:2F:59:6B:01:6E:8B:75:8E:E5:BE:08:83
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
reproinst.org *.reproinst.org *.mail.reproinst.org *.piyasamakademisi.reproinst.org

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*.abc.autoscr.com autoscr.com *.autoscr.com *.ww25.autoscr.com
celikkan.com *.celikkan.com *.rustore.celikkan.com *.workspace.celikkan.com
*.17.clasgens.us *.api.clasgens.us *.asp.clasgens.us *.auth-ns.clasgens.us *.autodiscover.clasgens.us *.bm.clasgens.us *.bridgeopen.clasgens.us *.bv.clasgens.us *.campaign.clasgens.us *.cf.clasgens.us clasgens.us *.clasgens.us *.corporate.clasgens.us *.cust31.clasgens.us *.demo.clasgens.us *.diamond.clasgens.us *.disneyxd.clasgens.us *.dropbox.clasgens.us *.echelonelectricllwww.clasgens.us *.email.clasgens.us *.emv1.clasgens.us *.ermvyhm.clasgens.us *.f.clasgens.us *.files.clasgens.us *.frank.clasgens.us *.fs.clasgens.us *.gdowebapp.clasgens.us *.guide.clasgens.us *.hal.clasgens.us *.host5.clasgens.us *.hotels.clasgens.us *.imailhost.clasgens.us *.ircserver.clasgens.us *.m.clasgens.us *.mail6.clasgens.us *.mailserv.clasgens.us *.navigator.clasgens.us *.nt40.clasgens.us *.ofertas-trabajo.clasgens.us *.old.clasgens.us *.openbsd.clasgens.us *.ops0.clasgens.us *.pls-gts.clasgens.us *.pop.clasgens.us *.pop3.clasgens.us *.popmail.clasgens.us *.potaufeu.clasgens.us *.ppp8.clasgens.us *.prd.clasgens.us *.qaiudimg1.clasgens.us *.smtp.clasgens.us *.spiderman.clasgens.us *.stash.clasgens.us *.trabajo.clasgens.us *.v2.clasgens.us *.vendors.clasgens.us *.ww.clasgens.us *.ww25.clasgens.us *.www.clasgens.us *.yankee.clasgens.us
lensgo-ai.com *.lensgo-ai.com
lontv.xyz *.lontv.xyz *.ww25.lontv.xyz *.ww38.lontv.xyz *.xx.lontv.xyz
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syggzs.net *.syggzs.net