DNS Gurus
Cached · just now
76/100 SECURITY SCORE

Certificate Information

Subject
CN=cosmo789.com
Issuer
C=US, O=Let's Encrypt, CN=R12
Valid From
February 07, 2026
Valid Until
May 08, 2026 89 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
21:4E:DB:8D:8F:13:78:80:FC:62:58:51:4D:E2:59:BD:82:9F:A1:51:BF:75:1F:EE:A6:D1:6E:D5:C0:67:EC:6E
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
1800idea.com *.1800idea.com *.api.1800idea.com *.beta.1800idea.com *.dev.1800idea.com *.mail.1800idea.com *.test.1800idea.com *.ww17.1800idea.com *.www.1800idea.com

Other domains in certificate

4roblox.com *.4roblox.com *.hostmaster.4roblox.com *.random.4roblox.com *.ww25.4roblox.com *.ww38.4roblox.com
akello.com *.akello.com *.blog.akello.com *.demo.akello.com *.dev.akello.com *.jmc.akello.com *.library.akello.com *.mail.akello.com *.portal.akello.com *.remote.akello.com *.remote2.akello.com *.sitemap.akello.com *.smartlearning.akello.com *.ssl.akello.com *.sslvpn.akello.com *.sslvpn2.akello.com *.sslvpn3.akello.com *.vpn.akello.com *.vpn2.akello.com *.vpn3.akello.com *.webmail.akello.com *.wp.akello.com *.ww16.akello.com *.ww38.akello.com
blissbear.net *.blissbear.net *.dev.blissbear.net *.notexistsdemo.blissbear.net *.redhat.blissbear.net *.reporting.blissbear.net *.reports.blissbear.net
cosmo789.com *.cosmo789.com *.ww25.cosmo789.com
*.backend.fowler.it fowler.it *.fowler.it
*.connectvpn.kevlin.com *.gateway.kevlin.com kevlin.com *.kevlin.com *.mobile.kevlin.com *.office.kevlin.com *.portal.kevlin.com *.secureaccess.kevlin.com *.ssl.kevlin.com *.vpn.kevlin.com *.vpn2.kevlin.com *.web.kevlin.com *.webvpn.kevlin.com *.ww16.kevlin.com *.ww17.kevlin.com
*.app.manhattanspiritualsomatictherapy.com *.assets.manhattanspiritualsomatictherapy.com *.dashboard.manhattanspiritualsomatictherapy.com manhattanspiritualsomatictherapy.com *.manhattanspiritualsomatictherapy.com *.rds.manhattanspiritualsomatictherapy.com *.remote.manhattanspiritualsomatictherapy.com
*.3d57d7c2-c614-4f2d-8982-e84639f2a183.pagarag.com *.cpanel.pagarag.com *.ftp.pagarag.com pagarag.com *.pagarag.com *.smtp.pagarag.com *.webdisk.pagarag.com *.webmail.pagarag.com
pelangitoto.bio *.pelangitoto.bio
thegiveaway.co *.thegiveaway.co
*.autodiscover.theonenail.com.au theonenail.com.au *.theonenail.com.au *.ww38.theonenail.com.au