DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Detected Technologies

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

Certificate Information

Subject
CN=4981.com
Issuer
C=US, O=Let's Encrypt, CN=R13
Valid From
February 19, 2026
Valid Until
May 20, 2026 86 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
C3:03:12:85:AE:73:B3:40:F9:B8:E6:B9:C6:1D:32:22:29:4F:66:30:70:18:C6:B1:40:49:F6:58:FE:C9:C2:60
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 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

90 domains
alperne.com *.alperne.com *.access.alperne.com *.admin.alperne.com *.api.alperne.com *.app.alperne.com *.apps.alperne.com *.assets.alperne.com *.auth.alperne.com *.cloud.alperne.com *.correio.alperne.com *.emv1.alperne.com *.exchange.alperne.com *.hostmaster.alperne.com *.m.alperne.com *.mail.alperne.com *.mailgw.alperne.com *.mailserver.alperne.com *.member.alperne.com *.members.alperne.com *.rdp.alperne.com *.rds.alperne.com *.rds1.alperne.com *.rdweb.alperne.com *.remote.alperne.com *.sitemap.alperne.com *.smtp.alperne.com *.smtp1.alperne.com *.test.alperne.com *.ts.alperne.com *.vpn.alperne.com *.webmail.alperne.com *.ww1.alperne.com *.ww11.alperne.com *.ww16.alperne.com *.ww17.alperne.com *.ww25.alperne.com *.ww38.alperne.com

Other domains in certificate

*.3134.4981.com 4981.com *.4981.com *.6163.4981.com *.abc.4981.com *.ww01.4981.com *.ww1.4981.com *.ww16.4981.com *.ww17.4981.com *.xob.4981.com
*.access.softwarecollege.com *.anyconnect.softwarecollege.com *.anywhere.softwarecollege.com *.apps.softwarecollege.com *.blog.softwarecollege.com *.cisapp.softwarecollege.com *.clientesvpn.softwarecollege.com *.connect.softwarecollege.com *.gateway.softwarecollege.com *.rdp.softwarecollege.com *.rdweb.softwarecollege.com *.remote.softwarecollege.com softwarecollege.com *.softwarecollege.com *.ssl.softwarecollege.com *.sslvpn.softwarecollege.com *.vdi.softwarecollege.com *.vpn.softwarecollege.com *.vpngate.softwarecollege.com *.webvpn.softwarecollege.com *.wp.softwarecollege.com *.ww16.softwarecollege.com *.ww25.softwarecollege.com *.ww38.softwarecollege.com *.xapp.softwarecollege.com
*.autodiscover.theshepherdshotel.com *.cpanel.theshepherdshotel.com *.cpcontacts.theshepherdshotel.com theshepherdshotel.com *.theshepherdshotel.com *.www.theshepherdshotel.com
*.assets.u888lol.media *.backup.u888lol.media *.demo.u888lol.media *.mailer.u888lol.media *.marketing.u888lol.media *.secure.u888lol.media u888lol.media *.u888lol.media *.v1.u888lol.media *.web.u888lol.media *.www.u888lol.media