DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=ttxltt.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 08, 2026
Valid Until
May 09, 2026 89 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
82:22:56:36:03:17:86:E8:1A:07:F3:C6:3E:37:8A:CA:3B:60:5A:53:3A:27:58:6F:7C:A0:4F:54:43:E8:E9:21
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
singercenter.com *.singercenter.com *.admin.singercenter.com *.apps.singercenter.com *.assets.singercenter.com *.backup.singercenter.com *.blog.singercenter.com *.dashboard.singercenter.com *.fkpxtqzuyvformation.singercenter.com *.formation.singercenter.com *.gate.singercenter.com *.gateway.singercenter.com *.gp.singercenter.com *.hostmaster.singercenter.com *.m.singercenter.com *.mail.singercenter.com *.mailer.singercenter.com *.portal.singercenter.com *.ra.singercenter.com *.rd.singercenter.com *.rdp.singercenter.com *.rds.singercenter.com *.rdweb.singercenter.com *.remoteapp.singercenter.com *.remoto.singercenter.com *.secure.singercenter.com *.shop.singercenter.com *.sitemaps.singercenter.com *.ssl.singercenter.com *.staging.singercenter.com *.stg.singercenter.com *.test.singercenter.com *.v1.singercenter.com *.v2.singercenter.com *.vpn1.singercenter.com *.vpn2.singercenter.com *.vpnssl.singercenter.com *.web.singercenter.com *.webvpn.singercenter.com *.ww25.singercenter.com *.wzlinqa.singercenter.com

Other domains in certificate

*.12cjff.gsseo-lcv.com *.3.gsseo-lcv.com *.49199112.gsseo-lcv.com *.611.gsseo-lcv.com *.76471.gsseo-lcv.com *.81442527.gsseo-lcv.com *.8224.gsseo-lcv.com *.944.gsseo-lcv.com gsseo-lcv.com *.gsseo-lcv.com *.ppmt8.gsseo-lcv.com *.pwogi.gsseo-lcv.com *.r.gsseo-lcv.com *.veat.gsseo-lcv.com
*.0108f70e-ef94-47e4-a230-0727e5d7c23a.industrial-vr.com *.demo.industrial-vr.com *.fdc65a1b-e368-4436-9eaf-d869a6431759.industrial-vr.com *.hostmaster.industrial-vr.com industrial-vr.com *.industrial-vr.com *.lenatuqf.industrial-vr.com *.m.industrial-vr.com *.mx.industrial-vr.com *.www.industrial-vr.com
*.access.personal-consulting.net *.dashboard.personal-consulting.net *.dev.personal-consulting.net *.ftp.personal-consulting.net *.kutezmail.personal-consulting.net *.m.personal-consulting.net *.mail.personal-consulting.net personal-consulting.net *.personal-consulting.net *.rd.personal-consulting.net *.rds.personal-consulting.net *.rdweb.personal-consulting.net *.staging.personal-consulting.net *.stg.personal-consulting.net *.v1.personal-consulting.net *.v2.personal-consulting.net *.vpn.personal-consulting.net *.vzhtbgja.personal-consulting.net *.web.personal-consulting.net *.webmail.personal-consulting.net *.zxvvncloud.personal-consulting.net
*.shop.ttxltt.com ttxltt.com *.ttxltt.com