DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

See all in URL Inspect 1
Let's Encrypt logo Let's Encrypt Active incidents

Certificate Information

Subject
CN=estudiante.info
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
May 01, 2026
Valid Until
July 30, 2026 80 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
8C:EB:CC:4F:FB:CF:50:F2:7D:BA:C2:07:CA:77:66:9C:03:08:A0:6E:B3:9F:1D:F9:13:36:45:77:E4:59:65:68
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 Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
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
onstemware.com *.onstemware.com *.admin.onstemware.com *.hostmaster.onstemware.com *.www.onstemware.com

Other domains in certificate

allmatureporn.cc *.allmatureporn.cc *.mail.allmatureporn.cc
beavex.com *.beavex.com *.cxt.beavex.com *.info.beavex.com *.trabajo.beavex.com
*.6ed3a687-93bb-48b4-885a-bc7b25df8a32.bestsingapore.vip *.admin.bestsingapore.vip *.api.bestsingapore.vip *.app.bestsingapore.vip bestsingapore.vip *.bestsingapore.vip *.citrix.bestsingapore.vip *.cloudvpn.bestsingapore.vip *.demo.bestsingapore.vip *.dev.bestsingapore.vip *.eye.bestsingapore.vip *.hostmaster.bestsingapore.vip *.izcvlmvzzxcloudvpn.bestsingapore.vip *.vip.bestsingapore.vip
*.a.estudiante.info *.api.estudiante.info *.app.estudiante.info *.autodiscover.estudiante.info *.com.estudiante.info *.cpanel.estudiante.info *.dma.estudiante.info estudiante.info *.estudiante.info *.hostmaster.estudiante.info *.m.estudiante.info *.mx.estudiante.info *.mx0.estudiante.info *.myqa.estudiante.info *.onmyqa.estudiante.info *.poczta.estudiante.info *.random.estudiante.info
ghostwalks.co.uk *.ghostwalks.co.uk
goodmaturesex.cc *.goodmaturesex.cc *.www.goodmaturesex.cc
kfreegame.com *.kfreegame.com *.resource.kfreegame.com *.ww25.kfreegame.com
lyrf.xyz *.lyrf.xyz *.lyrf2024.lyrf.xyz *.ww16.lyrf.xyz *.ww38.lyrf.xyz *.xn--399-bc9dy18d.lyrf.xyz
msoftemploymentssettlement.com *.msoftemploymentssettlement.com
*.member.ps145.bio ps145.bio *.ps145.bio
*.admin.shant.it *.analytics.shant.it *.api.shant.it *.app.shant.it *.backend.shant.it *.com.shant.it *.dash.shant.it *.dashboards.shant.it *.demo.shant.it *.dev.shant.it *.flowiseai.shant.it *.hostmaster.shant.it *.mx.shant.it *.research.shant.it shant.it *.shant.it *.stats.shant.it *.status.shant.it *.webmail.shant.it *.www.shant.it
skinsworldbusdrivingsimulator.com *.skinsworldbusdrivingsimulator.com
*.a.ssdairport.com ssdairport.com *.ssdairport.com